CERN Courier June 2018 Faces & Places
A ppointments Tanaka to head SLAC neutrino group
Neutrino physicist Hirohisa Tanaka has in 2002 and went on to work on neutrino moved from the University of Toronto experiments at Fermilab (MiniBooNE) and (Canada) to SLAC National Accelerator J-PARC (T2K). The SLAC group’s growing
Laboratory in the US to expand the lab’s Harmer/SLACD activities include developing the data role in the Deep Underground Neutrino readout and reconstruction for liquid-argon Experiment (DUNE). The experiment, detectors like those used in DUNE, and the which will study neutrinos produced by design of the near detector at Fermilab. Fermilab’s Long-Baseline Neutrino Facility “If we’re lucky, we may see the first approximately 1300 km away, is due to hints of asymmetries between neutrinos and start up in the mid-2020s and will address antineutrinos with current experiments,” critical issues such as whether CP violation says Tanaka. “In the long run, DUNE exists in the neutrino sector and what is the will give us the definite answers due to hierarchy of the neutrino masses. Tanaka is to head a group studying data its longer baseline and higher-power Tanaka completed his PhD at SLAC from DUNE. neutrino beam.”
Light Source, where he is head of the SESAME appoints ILSF accelerator physics group, and will be on leave from the John Adams Institute at the technical director University of Oxford. “It is great to be part of a project that The third-generation light source promotes science and peace, and it is a SESAME in Jordan has appointed privilege to carry on the work done by my Riccardo Bartolini as technical director, predecessors Einfeld, Vignola, Nadji and overseeing the facility’s infrastructure Huttel,” he said. through its start-up phase. Bartolini’s SESAME was established under the experience ranges from synchrotron auspices of UNESCO in 2002 and is light sources to free-electron lasers and modeled closely on CERN. It produced colliders. While serving as SESAME’s “first light” in 2017 and, last month, technical director, he will divide his time Riccardo Bartolini will oversee SESAME’s inaugurated a second beamline between Jordan and the UK’s Diamond infrastructure. (CERN Courier March 2017 p8).
A w A r d s Four winners of 2018 Edison Volta Prize VACUUM SOLUTIONS The 2018 European Physical Society (EPS) Edison Volta Prize, organised in conjunction with the Fondazione Alessandro Volta and energy firm Edison S.p.A., has been awarded FROM A SINGLE SOURCE to four gravitational-wave researchers. Alain Brillet (Observatoire de la Cote d’Azur, Nice, France), Karsten Danzmann Pfei er Vacuum is proud to have been a supplier of innovative and customized vacuum solutions to the particle accelerator (Max-Planck-Institut für Gravitationsphysik community for more than 50 years. Our complete product portfolio for vacuum technology, our focus on competent and and Leibniz University, Hannover, specialized advice supported by robust and reliable service, makes Pfei er Vacuum the partner of choice for the analytical Germany), Adalberto Giazotto (INFN, Pisa) and research communities worldwide. and Jim Hough (University of Glasgow, UK) were recognised “for the development, ■ Pumps for vacuum generation down to UHV in their respective countries, of key ■ Vacuum measurement and analysis equipment technologies and innovative experimental Gravitational-wave researchers (left to right) Alain Brillet, Karsten Danzmann, Visit us at booth 19 & 20, solutions, that enabled the advanced Adalberto Giazotto and Jim Hough. Image credits (from left to right): M Perciballi, ■ Leak detectors and integrity test systems interferometric gravitational-wave A Hindemith, INFN, University of Glasgow. ■ System technology and contamination management solutions 15th European detectors LIGO and Virgo to detect the first ■ Chambers and components Vacuum Conference, gravitational-wave signals from mergers of Edison Volta Prize is given biennially to Giazatto (CERN Courier April 2018 p55) black holes and of neutron stars.” The EPS individuals or groups of up to three people. was awarded posthumously. Are you looking for a perfect vacuum solution? Please contact us: 17th – 22nd June, Pfeiffer Vacuum (Schweiz) AG · T +41 44 444 22 55 · F +41 44 444 22 66 Geneva, Switzerland [email protected] · www.pfeiffer-vacuum.com 33
CCJun18_Faces&Places_v5.indd 33 18/05/2018 11:18 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8 CERN Courier June 2018 CERN Courier June 2018 Faces & Places Faces & Places
O u t r e a c h Accelerator awards presented at IPAC Brazil signs up to IPPOG collaboration On 3 May, during a ceremony at the International Particle Accelerator The International Particle Physics Outreach Ignacio de Bediaga Hickman (left), chair Conference in Vancouver (p36), the Group (IPPOG) has welcomed Brazil as a of the Brazilian national network for
American Physical Society (APS) and new member, boosting efforts to expand the Marcelloni C high-energy physics RENAFAE, signing the the Institute of Electrical and Electronics group’s international impact on scientific MoU on 26 April with IPPOG chairs Engineers (IEEE) presented their 2018 outreach. Established 20 years ago as a Hans Peter Beck (right) and Steve Goldfarb. awards recognising excellence in the European network, IPPOG has grown to accelerator field. a global network that involves countries, several countries to formally join the The recipient of the 2018 thesis award laboratories and scientific collaborations collaboration in recent months. In April, granted by the APS division of physics of active in particle physics. It is best known for at the 15th IPPOG collaboration meeting beams is Sergey Antipov of CERN, who From left to right: Hermann Grunder, Sandra Biedron, Martina Martinello and its international masterclasses programme, in Pisa, two further countries – Slovenia was honoured “for experimental studies and Sergey Antipov at the Vancouver ceremony. (Image credits: IPAC18.) which evolved in the late 1990s from and the Czech Republic – confirmed their analysis of the electron cloud build-up and national outreach efforts. Following the membership, while Greece and Austria corresponding instability in accelerators last year (CERN Courier December 2017 of accelerators in medical research. Sandra model of collaboration in experimental are finalising the process to sign IPPOG’s with combined function magnets and for p35), also received his award during the Biedron of the University of New Mexico particle physics, IPPOG became a MoU. That will bring IPPOG’s total the development of an effective mitigation Vancouver ceremony. received the award “for broad impact in formal scientific collaboration based on a Brazil, which will be officially number of members to 26 – including the technique applied in Fermilab’s recycler The IEEE Particle Accelerator Science accelerator science and technology”, which memorandum of understanding (MoU) in represented in IPPOG by Marcelo Munhoz Belle II experiment, which has just started ring”. Also receiving his certificate was and Technology (PAST) award, made includes contributions to the FERMI@ 2017 (CERN Courier March 2017 p5). of the University of São Paulo, is one of operations at KEK in Japan (see p7). last year’s thesis-award recipient Spencer on behalf of IEEE’s nuclear and plasma Elettra free-electron laser in Italy, and R&D Gessner of SLAC National Accelerator sciences society, is given to individuals in advanced controls, novel diagnostics and a n n i v e r s a r y Laboratory, who was cited for “an original who have made outstanding contributions high-power electron guns. theoretical treatment and an experimental to accelerator science and technology. The 2018 PAST Doctoral Student Award,
demonstration of accelerating positrons Hermann Grunder, director emeritus at in recognition of significant and innovative J A Cardoso ALICE marks quarter century in a hollow channel plasma wakefield Argonne National Laboratory in the US, was technical contributions to the field of particle accelerator”. Alexander Wu Chao of SLAC honoured “for his far-reaching contributions accelerator science and technology, was National Accelerator Laboratory, winner of to accelerator science and technology”, presented to Martina Martinello of Fermilab the prestigious 2018 APS Robert R. Wilson which span nuclear physics, high-energy “for contributions to physical understanding Prize for Achievement announced late and heavy-ion accelerators, and applications of limiting factors in SRF cavities”. Panjab University Panjab From right to left: Virdee, Venkaiah Naidu, Panjab University vice-president of India and chancellor of the university, and vice-chancellor Arun Grover.
honours Virdee Virdee was the deputy spokesperson of CMS and, later, spokesperson for three On 4 March, CMS physicist Tejinder (Jim) years from 2007. He played a crucial role Virdee of Imperial College, London, was in all phases of the CMS experiment since awarded an honorary doctorate by Panjab its formation and, during the experiment’s University, India, in recognition of his early period, travelled widely to engage, outstanding contribution to the LHC’s excite and invite the participation of CMS experiment. Between 1993 and 2006, physicists from around the world.
Kaplan has won many accolades for his film Kaplan wins for covering the switch-on of the LHC. A book launched at CERN on 26 April in the presence of Pedro Afonso Comissário, Speakers at the jubilee event, clockwise from top left: Chris Fabjan (ALICE technical follows six physicists during the LHC ambassador of Mozambique to the Particle Fever switch-on, and the film has won multiple coordinator from 2001 to 2007), Emanuele Quercigh (first chair of the collaboration United Nations, provides a glimpse into board), Luciano Musa (project leader of the inner tracking system), and Jürgen Schukraft Johns HopkinsJohns University awards since its launch in 2013. Kaplan, CERN’s nature as a centre of knowledge (spokesperson from 1992 to 2010). (Image credits: V Greco/CERN.) A documentary about the Large Hadron whose research interests include the Higgs creation and a true melting pot of skills. Collider (LHC) has won producer David boson and dark matter, completed a year of Devised, edited and assembled by Kaplan, a theorist at Johns Hopkins film school before pursuing physics at the Marilena Streit-Bianchi, a former On 21 March, members of the ALICE nucleus–nucleus collisions. The effort has University in the US, the 2018 Andrew University of California, Berkeley. member of staff, CERN: Science Bridging collaboration celebrated 25 years since the been rewarded with major advances in our Gemant Award. The annual prize, awarded “I wanted to give the experiential version Cultures brings together texts written by experiment was founded. On 1 March 1993, understanding of the quark–gluon plasma by the American Institute of Physics, of the story where people would learn the CERN scientists, project leaders, the recently formed ALICE collaboration and with the discovery of new phenomena, recognises contributions to the cultural, science only because it was a key part of the department heads and directors. It submitted a letter of intent to the CERN such as the detection of collective effects artistic and human dimensions of physics narrative – it wasn’t the goal to teach them contains illustrations by the Mozambican Large Hadron Collider (LHC) committee, and strangeness enhancement in small and includes a cash sum of $5000 and physics. You can’t learn particle physics artist Justino António Cardoso and has proposing the construction of a heavy-ion collision systems (CERN Courier April 2017 a grant of $3000 to further the public in 90 minutes, but you can experience the been translated into several languages. experiment dedicated to the study of p26). The ATLAS and CMS collaborations communication of physics. Particle Fever process of it,” he says. strongly interacting matter produced in celebrated their 25th birthdays in October.
34 35
CCJun18_Faces&Places_v5.indd 34 18/05/2018 11:19 CCJun18_Faces&Places_v5.indd 35 18/05/2018 11:19 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8 CERN Courier June 2018 CERN Courier June 2018 Faces & Places Faces & Places
O u t r e a c h Accelerator awards presented at IPAC Brazil signs up to IPPOG collaboration On 3 May, during a ceremony at the International Particle Accelerator The International Particle Physics Outreach Ignacio de Bediaga Hickman (left), chair Conference in Vancouver (p36), the Group (IPPOG) has welcomed Brazil as a of the Brazilian national network for
American Physical Society (APS) and new member, boosting efforts to expand the Marcelloni C high-energy physics RENAFAE, signing the the Institute of Electrical and Electronics group’s international impact on scientific MoU on 26 April with IPPOG chairs Engineers (IEEE) presented their 2018 outreach. Established 20 years ago as a Hans Peter Beck (right) and Steve Goldfarb. awards recognising excellence in the European network, IPPOG has grown to accelerator field. a global network that involves countries, several countries to formally join the The recipient of the 2018 thesis award laboratories and scientific collaborations collaboration in recent months. In April, granted by the APS division of physics of active in particle physics. It is best known for at the 15th IPPOG collaboration meeting beams is Sergey Antipov of CERN, who From left to right: Hermann Grunder, Sandra Biedron, Martina Martinello and its international masterclasses programme, in Pisa, two further countries – Slovenia was honoured “for experimental studies and Sergey Antipov at the Vancouver ceremony. (Image credits: IPAC18.) which evolved in the late 1990s from and the Czech Republic – confirmed their analysis of the electron cloud build-up and national outreach efforts. Following the membership, while Greece and Austria corresponding instability in accelerators last year (CERN Courier December 2017 of accelerators in medical research. Sandra model of collaboration in experimental are finalising the process to sign IPPOG’s with combined function magnets and for p35), also received his award during the Biedron of the University of New Mexico particle physics, IPPOG became a MoU. That will bring IPPOG’s total the development of an effective mitigation Vancouver ceremony. received the award “for broad impact in formal scientific collaboration based on a Brazil, which will be officially number of members to 26 – including the technique applied in Fermilab’s recycler The IEEE Particle Accelerator Science accelerator science and technology”, which memorandum of understanding (MoU) in represented in IPPOG by Marcelo Munhoz Belle II experiment, which has just started ring”. Also receiving his certificate was and Technology (PAST) award, made includes contributions to the FERMI@ 2017 (CERN Courier March 2017 p5). of the University of São Paulo, is one of operations at KEK in Japan (see p7). last year’s thesis-award recipient Spencer on behalf of IEEE’s nuclear and plasma Elettra free-electron laser in Italy, and R&D Gessner of SLAC National Accelerator sciences society, is given to individuals in advanced controls, novel diagnostics and a n n i v e r s a r y Laboratory, who was cited for “an original who have made outstanding contributions high-power electron guns. theoretical treatment and an experimental to accelerator science and technology. The 2018 PAST Doctoral Student Award,
demonstration of accelerating positrons Hermann Grunder, director emeritus at in recognition of significant and innovative J A Cardoso ALICE marks quarter century in a hollow channel plasma wakefield Argonne National Laboratory in the US, was technical contributions to the field of particle accelerator”. Alexander Wu Chao of SLAC honoured “for his far-reaching contributions accelerator science and technology, was National Accelerator Laboratory, winner of to accelerator science and technology”, presented to Martina Martinello of Fermilab the prestigious 2018 APS Robert R. Wilson which span nuclear physics, high-energy “for contributions to physical understanding Prize for Achievement announced late and heavy-ion accelerators, and applications of limiting factors in SRF cavities”. Panjab University Panjab From right to left: Virdee, Venkaiah Naidu, Panjab University vice-president of India and chancellor of the university, and vice-chancellor Arun Grover.
honours Virdee Virdee was the deputy spokesperson of CMS and, later, spokesperson for three On 4 March, CMS physicist Tejinder (Jim) years from 2007. He played a crucial role Virdee of Imperial College, London, was in all phases of the CMS experiment since awarded an honorary doctorate by Panjab its formation and, during the experiment’s University, India, in recognition of his early period, travelled widely to engage, outstanding contribution to the LHC’s excite and invite the participation of CMS experiment. Between 1993 and 2006, physicists from around the world.
Kaplan has won many accolades for his film Kaplan wins for covering the switch-on of the LHC. A book launched at CERN on 26 April in the presence of Pedro Afonso Comissário, Speakers at the jubilee event, clockwise from top left: Chris Fabjan (ALICE technical follows six physicists during the LHC ambassador of Mozambique to the Particle Fever switch-on, and the film has won multiple coordinator from 2001 to 2007), Emanuele Quercigh (first chair of the collaboration United Nations, provides a glimpse into board), Luciano Musa (project leader of the inner tracking system), and Jürgen Schukraft Johns HopkinsJohns University awards since its launch in 2013. Kaplan, CERN’s nature as a centre of knowledge (spokesperson from 1992 to 2010). (Image credits: V Greco/CERN.) A documentary about the Large Hadron whose research interests include the Higgs creation and a true melting pot of skills. Collider (LHC) has won producer David boson and dark matter, completed a year of Devised, edited and assembled by Kaplan, a theorist at Johns Hopkins film school before pursuing physics at the Marilena Streit-Bianchi, a former On 21 March, members of the ALICE nucleus–nucleus collisions. The effort has University in the US, the 2018 Andrew University of California, Berkeley. member of staff, CERN: Science Bridging collaboration celebrated 25 years since the been rewarded with major advances in our Gemant Award. The annual prize, awarded “I wanted to give the experiential version Cultures brings together texts written by experiment was founded. On 1 March 1993, understanding of the quark–gluon plasma by the American Institute of Physics, of the story where people would learn the CERN scientists, project leaders, the recently formed ALICE collaboration and with the discovery of new phenomena, recognises contributions to the cultural, science only because it was a key part of the department heads and directors. It submitted a letter of intent to the CERN such as the detection of collective effects artistic and human dimensions of physics narrative – it wasn’t the goal to teach them contains illustrations by the Mozambican Large Hadron Collider (LHC) committee, and strangeness enhancement in small and includes a cash sum of $5000 and physics. You can’t learn particle physics artist Justino António Cardoso and has proposing the construction of a heavy-ion collision systems (CERN Courier April 2017 a grant of $3000 to further the public in 90 minutes, but you can experience the been translated into several languages. experiment dedicated to the study of p26). The ATLAS and CMS collaborations communication of physics. Particle Fever process of it,” he says. strongly interacting matter produced in celebrated their 25th birthdays in October.
34 35
CCJun18_Faces&Places_v5.indd 34 18/05/2018 11:19 CCJun18_Faces&Places_v5.indd 35 18/05/2018 11:19 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8 CERN Courier June 2018 CERN Courier June 2018 Faces & Places Faces & Places
M e e t i n g s Accelerator aficionados meet in Vancouver The history and future of the PHYSTAT series Banff InternationalBanff Research Station IPAC18 The 9th International Particle Accelerator heavy-ion synchrotron SIS18 that will drive Most particle-physics conferences Conference (IPAC18) was held in Vancouver, the world’s most intense uranium beams for emphasise the results of physics analyses. Canada, from 29 April to 4 May. Hosted by future FAIR operation. The PHYSTAT series is different: TRIUMF and jointly sponsored by the IEEE In the session devoted to beam dynamics speakers are told not to bother about the Nuclear and Plasma Sciences Society and the and electromagnetic fields, Valery Telnov actual results, but are reminded that the APS Division of Physics of Beams, the event (Budker Institute) introduced a cautionary main topics of interest are the statistical attracted more than 1210 delegates from 31 note about bremsstrahlung at the interaction techniques used, the resulting uncertainty countries, plus 80 industry exhibits staff. The points of future electron–positron colliders on measurements, and how systematics scientific programme included 63 invited talks (such as FCC-ee) that will impact beam are incorporated. What makes good and 62 contributed orals, organised according lifetimes whereas present-generation colliders statistical practice so important is that to eight main classes. While impossible to (such as SuperKEKB) are dominated by particle-physics experiments are expensive summarise the full programme in a short synchrotron radiation in the arcs. Tessa in human effort, time and money. It is thus article, below are some of the highlights from IPAC18 attracted more than 1210 delegates Charles of the University of Melbourne, very worthwhile to use reliable statistical IPAC18 that demonstrate the breadth and and 80 industry exhibits. meanwhile, introduced the method of techniques to extract the maximum vibrancy of the accelerator field at this time. “caustics” to understand and optimise information from data (but no more). A foray into the future of accelerators by acceleration featured large. CERN’s Marlene longitudinal beam-dynamics problems, such Stephen Brooks of Brookhaven National Turner described progress at the AWAKE as how to minimise coherent synchrotron Origins Laboratory was a walk on the wild side. The experiment, which aims to use a high-energy radiation effects in recirculation arcs. Late in 1999, I had the idea of a meeting idea of a single-particle collider was presented proton beam to generate a plasma wake that The proton linac for the European devoted solely to statistical issues, and as a possibility to achieve diffraction-limited is then used to accelerate an electron beam. Spallation Source (ESS) under construction in particular to confidence intervals and TeV beams to bridge the potential “energy Last year, the AWAKE team demonstrated in Sweden was presented by Morten Jensen upper limits for parameters of interest. desert” between current technology and self-modulation of the proton beam and during the session on accelerator technology. With the help of CERN’s statistics guru the next energy regime of interest. Relevant measured the formation of the plasma He outlined the variety of radio-frequency Fred James, a meeting was organised at technological and theoretical challenges wakefield. Now the team has installed the (RF) power sources used in the ESS proton CERN in January 2000 and attracted 180 Is there a significant peak in the background? Participants at the 2010 PHYSTAT workshop were discussed, including multiple ideas equipment to test the acceleration of an linac and the development of the first-ever participants. It was quickly followed by in Banff, Canada, appear to be looking the wrong way to see it. for overcoming emittance growth from injected electron beam, which is expected MW-class “inductive out tubes” for the a similar one at Fermilab in the US, and synchrotron radiation, focusing beams to be completed in 2018. Felicie Albert of linac’s high-beta cavities, which have been further meetings took place at Durham which featured the “Banff Challenges” at the 2011 meeting at CERN; the Lausanne (via gravitational lensing!) and obtaining Lawrence Livermore National Laboratory tested at CERN and reached record-beating (2002), SLAC (2003) and Oxford (2005). – in which participants were asked to statistician Victor Panaretos spoke about nucleus-level alignment, as was how to reduce also described the use of laser-wakefield performances of 1.2 MW output for 8.3 kW These workshops dealt with general decide which of many simulated data sets theoretical aspects, and subsequently his the cost of future accelerators. technology to generate betatron X rays, input power. Pending the development of a statistical issues in particle physics, such as: contained a possible signal of new physics. then student Mikael Kuusela became part The rise of X-ray free-electron lasers in the which could enable new measurements at production series, the accelerator community multivariate methods for separating signal The PHYSTAT workshops have largely of the CMS experiment, and has provided past decade, opening new scientific avenues X-ray free-electron lasers. may have a new RF workhorse. from background; comparisons between avoided having parallel sessions so that much valuable input to analyses involving in areas highly related to wider society, was a With IPAC18 coinciding with TRIUMF’s As indicated, these are just a few of the Bayesian and frequentist approaches; blind participants have the opportunity to hear all unfolding. PHYSTAT is also one of the strong theme of the conference. In addition, 50th anniversary (CERN Courier May 2018 many scientific highlights from IPAC18. analyses; treatment of systematics; p-values of the talks. From the very first meetings, factors that has helped in raising the level in the session devoted to photon sources p31), laboratory director Jonathan Bagger Industry was also a major presence. In an or likelihood ratios for hypothesis testing; the atmosphere has been enhanced by the of respectability with which statistics and electron accelerators, Michael Spata described the evolution of TRIUMF from its industry panel discussion, speakers talked goodness-of-fit techniques; the “look presence of statisticians; more than 50 have is regarded by particle physicists. Thus, described the Jefferson Laboratory’s 12 GeV founding in 1968 by three local universities about successful models for technology elsewhere” effect; and how to combine participated in the various meetings over graduate summer schools (such as those upgrade of CEBAF, which began full-power to the present-day set-up with 20 member transfer, while talks such as that from Will results from different analyses. the years. Most of the workshops start with organised by CERN) now have lecture operation in April after overcoming universities, users drawn from 38 countries Kleeven (IBA) described the Rhodotron Subsequent meetings were devoted to a statistics lecture at an introductory level courses on statistics, some conferences numerous challenges (including installation and an annual budget of CA$100 million. compact industrial CW electron accelerator topics in specific areas within high-energy to help people with less experience in this include plenary talks, and books on and operation of a new 4 kW helium liquefier, Also in the hadron-accelerator session was a producing intense beams with energies in the physics. Thus, in 2007 and 2011, CERN field understand the subsequent talks and particle-physics methodology have chapters and field-emission limitations in the talk by Sergei Nagaitsev of Fermilab about the range from around 1 to 10 MeV, which has hosted two more meetings focusing discussions. The final pair of summary talks devoted to statistics. With the growth in cryomodules). James Rosenzweig (UCLA) path to the Long-Baseline Neutrino Facility, key industry applications including polymer on issues relevant for data analysis at are then traditionally given by a statistician size and complexity of data in this field, a described progress towards an all-optical which is actually three parallel paths: one for cross-linking, sterilisation, food treatment the Large Hadron Collider (LHC), and and a particle physicist. thorough grounding in statistics is going to “fifth-generation” light source. Here, a TW the proton beams (PIP-II), one for the detector and container security scanning. particularly on searches for new physics. become even more important. laser pulse would be split into two, with which will be located in the Homestake mine IPAC is committed to welcoming young At the 2011 meeting, a whole day was A key role Recently, Olaf Behnke of DESY in half being used to accelerate high-quality in South Dakota (DUNE) 1300 km away, researchers, offering more than 100 student devoted to unfolding, that is, correcting PHYSTAT has played a role in the evolution Hamburg has taken over the organisation electron bunches as they co-propagate in a and one for the facilities at Fermilab and grants and heavily discounted fees for observed data for detector smearing of the way particle physicists employ and planning of the PHYSTAT programme tapered undulator, and the other half striking Homestake. The three projects will engage all students. Almost 1500 posters were effects. More recently, two PHYSTAT-ν statistical methods in their research, and and already there are ideas regarding the accelerated electron beam head on so more than 175 institutions from around the presented by authors from 233 institutions workshops took place at the Institute for has also had a real influence on specific having a monthly lecture series, a further that the back-scattered photons are shifted world with the aim of investigating leptonic over four days. The regional attendance Physics and Mathematics of the Universe topics. For instance, at the SLAC meeting in PHYSTAT-ν workshop at CERN in to much shorter wavelengths. The scheme CP violation and the mass hierarchy in the distribution was 24% from Asia, 41% in Japan (2016) and at Fermilab (2017). 2003, Jerry Friedman (a SLAC statistician January 2019 and a PHYSTAT-LHC could lead to a compact, tunable multi-MeV neutrino sector. The International Facility for from Europe and 35% from the Americas, They concentrated on issues that arise in who was previously a particle physicist) meeting in autumn 2019, and possibly one gamma-ray source, and successful Antiproton and Ion Research (FAIR) under demonstrating the truly international nature analysing data from neutrino experiments, spoke about boosted decision trees for devoted to statistical issues in dark-matter demonstrations have already taken place at construction in Germany (CERN Courier of our field. The 10th IPAC will take place in which are now reaching exciting levels of separating signal from background; such experiments. In all probability, the future of the RUBICONICS test stand at UCLA. July/August 2007 p4) was another focus of Melbourne, Australia, on 19–24 May 2019. precision. In between these events, there algorithms are now very commonly used for PHYSTAT is bright. Concerning novel particle sources and this session, with Mei Bai of GSI Darmstadt ● Shane Koscielniak (TRIUMF) and were two smaller workshops at the Banff event selection in particle physics. Another ● Louis Lyons, Imperial College, London, and acceleration techniques, plasma-wakefield summarising the significant upgrade of the Tor Raubenheimer (SLAC), IPAC18 chairs. International Research Station in Canada, example is unfolding, which was discussed University of Oxford, UK.
36 37
CCJun18_Faces&Places_v5.indd 36 18/05/2018 11:19 CCJun18_Faces&Places_v5.indd 37 18/05/2018 11:19 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8 CERN Courier June 2018 CERN Courier June 2018 Faces & Places Faces & Places
M e e t i n g s Accelerator aficionados meet in Vancouver The history and future of the PHYSTAT series Banff InternationalBanff Research Station IPAC18 The 9th International Particle Accelerator heavy-ion synchrotron SIS18 that will drive Most particle-physics conferences Conference (IPAC18) was held in Vancouver, the world’s most intense uranium beams for emphasise the results of physics analyses. Canada, from 29 April to 4 May. Hosted by future FAIR operation. The PHYSTAT series is different: TRIUMF and jointly sponsored by the IEEE In the session devoted to beam dynamics speakers are told not to bother about the Nuclear and Plasma Sciences Society and the and electromagnetic fields, Valery Telnov actual results, but are reminded that the APS Division of Physics of Beams, the event (Budker Institute) introduced a cautionary main topics of interest are the statistical attracted more than 1210 delegates from 31 note about bremsstrahlung at the interaction techniques used, the resulting uncertainty countries, plus 80 industry exhibits staff. The points of future electron–positron colliders on measurements, and how systematics scientific programme included 63 invited talks (such as FCC-ee) that will impact beam are incorporated. What makes good and 62 contributed orals, organised according lifetimes whereas present-generation colliders statistical practice so important is that to eight main classes. While impossible to (such as SuperKEKB) are dominated by particle-physics experiments are expensive summarise the full programme in a short synchrotron radiation in the arcs. Tessa in human effort, time and money. It is thus article, below are some of the highlights from IPAC18 attracted more than 1210 delegates Charles of the University of Melbourne, very worthwhile to use reliable statistical IPAC18 that demonstrate the breadth and and 80 industry exhibits. meanwhile, introduced the method of techniques to extract the maximum vibrancy of the accelerator field at this time. “caustics” to understand and optimise information from data (but no more). A foray into the future of accelerators by acceleration featured large. CERN’s Marlene longitudinal beam-dynamics problems, such Stephen Brooks of Brookhaven National Turner described progress at the AWAKE as how to minimise coherent synchrotron Origins Laboratory was a walk on the wild side. The experiment, which aims to use a high-energy radiation effects in recirculation arcs. Late in 1999, I had the idea of a meeting idea of a single-particle collider was presented proton beam to generate a plasma wake that The proton linac for the European devoted solely to statistical issues, and as a possibility to achieve diffraction-limited is then used to accelerate an electron beam. Spallation Source (ESS) under construction in particular to confidence intervals and TeV beams to bridge the potential “energy Last year, the AWAKE team demonstrated in Sweden was presented by Morten Jensen upper limits for parameters of interest. desert” between current technology and self-modulation of the proton beam and during the session on accelerator technology. With the help of CERN’s statistics guru the next energy regime of interest. Relevant measured the formation of the plasma He outlined the variety of radio-frequency Fred James, a meeting was organised at technological and theoretical challenges wakefield. Now the team has installed the (RF) power sources used in the ESS proton CERN in January 2000 and attracted 180 Is there a significant peak in the background? Participants at the 2010 PHYSTAT workshop were discussed, including multiple ideas equipment to test the acceleration of an linac and the development of the first-ever participants. It was quickly followed by in Banff, Canada, appear to be looking the wrong way to see it. for overcoming emittance growth from injected electron beam, which is expected MW-class “inductive out tubes” for the a similar one at Fermilab in the US, and synchrotron radiation, focusing beams to be completed in 2018. Felicie Albert of linac’s high-beta cavities, which have been further meetings took place at Durham which featured the “Banff Challenges” at the 2011 meeting at CERN; the Lausanne (via gravitational lensing!) and obtaining Lawrence Livermore National Laboratory tested at CERN and reached record-beating (2002), SLAC (2003) and Oxford (2005). – in which participants were asked to statistician Victor Panaretos spoke about nucleus-level alignment, as was how to reduce also described the use of laser-wakefield performances of 1.2 MW output for 8.3 kW These workshops dealt with general decide which of many simulated data sets theoretical aspects, and subsequently his the cost of future accelerators. technology to generate betatron X rays, input power. Pending the development of a statistical issues in particle physics, such as: contained a possible signal of new physics. then student Mikael Kuusela became part The rise of X-ray free-electron lasers in the which could enable new measurements at production series, the accelerator community multivariate methods for separating signal The PHYSTAT workshops have largely of the CMS experiment, and has provided past decade, opening new scientific avenues X-ray free-electron lasers. may have a new RF workhorse. from background; comparisons between avoided having parallel sessions so that much valuable input to analyses involving in areas highly related to wider society, was a With IPAC18 coinciding with TRIUMF’s As indicated, these are just a few of the Bayesian and frequentist approaches; blind participants have the opportunity to hear all unfolding. PHYSTAT is also one of the strong theme of the conference. In addition, 50th anniversary (CERN Courier May 2018 many scientific highlights from IPAC18. analyses; treatment of systematics; p-values of the talks. From the very first meetings, factors that has helped in raising the level in the session devoted to photon sources p31), laboratory director Jonathan Bagger Industry was also a major presence. In an or likelihood ratios for hypothesis testing; the atmosphere has been enhanced by the of respectability with which statistics and electron accelerators, Michael Spata described the evolution of TRIUMF from its industry panel discussion, speakers talked goodness-of-fit techniques; the “look presence of statisticians; more than 50 have is regarded by particle physicists. Thus, described the Jefferson Laboratory’s 12 GeV founding in 1968 by three local universities about successful models for technology elsewhere” effect; and how to combine participated in the various meetings over graduate summer schools (such as those upgrade of CEBAF, which began full-power to the present-day set-up with 20 member transfer, while talks such as that from Will results from different analyses. the years. Most of the workshops start with organised by CERN) now have lecture operation in April after overcoming universities, users drawn from 38 countries Kleeven (IBA) described the Rhodotron Subsequent meetings were devoted to a statistics lecture at an introductory level courses on statistics, some conferences numerous challenges (including installation and an annual budget of CA$100 million. compact industrial CW electron accelerator topics in specific areas within high-energy to help people with less experience in this include plenary talks, and books on and operation of a new 4 kW helium liquefier, Also in the hadron-accelerator session was a producing intense beams with energies in the physics. Thus, in 2007 and 2011, CERN field understand the subsequent talks and particle-physics methodology have chapters and field-emission limitations in the talk by Sergei Nagaitsev of Fermilab about the range from around 1 to 10 MeV, which has hosted two more meetings focusing discussions. The final pair of summary talks devoted to statistics. With the growth in cryomodules). James Rosenzweig (UCLA) path to the Long-Baseline Neutrino Facility, key industry applications including polymer on issues relevant for data analysis at are then traditionally given by a statistician size and complexity of data in this field, a described progress towards an all-optical which is actually three parallel paths: one for cross-linking, sterilisation, food treatment the Large Hadron Collider (LHC), and and a particle physicist. thorough grounding in statistics is going to “fifth-generation” light source. Here, a TW the proton beams (PIP-II), one for the detector and container security scanning. particularly on searches for new physics. become even more important. laser pulse would be split into two, with which will be located in the Homestake mine IPAC is committed to welcoming young At the 2011 meeting, a whole day was A key role Recently, Olaf Behnke of DESY in half being used to accelerate high-quality in South Dakota (DUNE) 1300 km away, researchers, offering more than 100 student devoted to unfolding, that is, correcting PHYSTAT has played a role in the evolution Hamburg has taken over the organisation electron bunches as they co-propagate in a and one for the facilities at Fermilab and grants and heavily discounted fees for observed data for detector smearing of the way particle physicists employ and planning of the PHYSTAT programme tapered undulator, and the other half striking Homestake. The three projects will engage all students. Almost 1500 posters were effects. More recently, two PHYSTAT-ν statistical methods in their research, and and already there are ideas regarding the accelerated electron beam head on so more than 175 institutions from around the presented by authors from 233 institutions workshops took place at the Institute for has also had a real influence on specific having a monthly lecture series, a further that the back-scattered photons are shifted world with the aim of investigating leptonic over four days. The regional attendance Physics and Mathematics of the Universe topics. For instance, at the SLAC meeting in PHYSTAT-ν workshop at CERN in to much shorter wavelengths. The scheme CP violation and the mass hierarchy in the distribution was 24% from Asia, 41% in Japan (2016) and at Fermilab (2017). 2003, Jerry Friedman (a SLAC statistician January 2019 and a PHYSTAT-LHC could lead to a compact, tunable multi-MeV neutrino sector. The International Facility for from Europe and 35% from the Americas, They concentrated on issues that arise in who was previously a particle physicist) meeting in autumn 2019, and possibly one gamma-ray source, and successful Antiproton and Ion Research (FAIR) under demonstrating the truly international nature analysing data from neutrino experiments, spoke about boosted decision trees for devoted to statistical issues in dark-matter demonstrations have already taken place at construction in Germany (CERN Courier of our field. The 10th IPAC will take place in which are now reaching exciting levels of separating signal from background; such experiments. In all probability, the future of the RUBICONICS test stand at UCLA. July/August 2007 p4) was another focus of Melbourne, Australia, on 19–24 May 2019. precision. In between these events, there algorithms are now very commonly used for PHYSTAT is bright. Concerning novel particle sources and this session, with Mei Bai of GSI Darmstadt ● Shane Koscielniak (TRIUMF) and were two smaller workshops at the Banff event selection in particle physics. Another ● Louis Lyons, Imperial College, London, and acceleration techniques, plasma-wakefield summarising the significant upgrade of the Tor Raubenheimer (SLAC), IPAC18 chairs. International Research Station in Canada, example is unfolding, which was discussed University of Oxford, UK.
36 37
CCJun18_Faces&Places_v5.indd 36 18/05/2018 11:19 CCJun18_Faces&Places_v5.indd 37 18/05/2018 11:19 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8 CERN Courier June 2018 CERN Courier June 2018 Faces & Places Faces & Places
L e t t e r Schrödinger equation has even been used to Heisenberg: two on the many-body problem Antimatter research leaps ahead Renaming the calculate the masses of hadrons considered in quantum mechanics (Z. für Physik 38 411 as systems of quarks, its only defect being and Z. für Physik 41 239) and one on ions The 13th Low Energy Antiproton Physics that it is nonrelativistic. with two electrons (Z für Physik 39 1926).
(LEAP) conference was held from 12–16 HilicoL Pauli principle These facts are confirmed in the book Frankly, it is too late, but I think that one March at the Sorbonne University International called Out the Crystal Maze (Oxford should rename the Pauli principle as the Conference Center in Paris. A large part of University Press, 1997), which gives Pauli–Heisenberg principle. the conference focused on experiments at references to three fundamental papers of ● André Martin, formerly CERN. the CERN Antiproton Decelerator (AD), in particular the outstanding results recently obtained by ALPHA and BASE. One of the main goals of this field is to Participants of the 2018 Low Energy Antiproton Physics conference in Paris. explain the lack of antimatter observed in PT2026 NMR Precision Teslameter the present universe, which demands that (CERN Courier July/August 2017 p41). CPT with baryons. The BASE comparison of physicists look for any difference between Talks covering experimental results the magnetic moment of the proton and the matter and antimatter, apart from their and the theory of antiproton interactions antiproton at the level of 2 × 10 –10 is another The feature “Putting the Pauli exclusion Reach new heights quantum numbers. Specifically, experiments with matter, and the study of the physics impressive achievement and is also consistent principle on trial” (CERN Courier March at the AD make ultra-precise measurements of antihydrogen, were complemented with with CPT (CERN Courier March 2017 p7). 2018 p35) was extremely interesting, to test charge-party-time (CPT) invariance discussions on other types of antimatter Three new results from ALPHA, which describing highly accurate experiments in magnetic eld and soon, via the free-fall of antihydrogen systems, such as purely leptonic positronium has now achieved stable operation in the that have put severe limits on the possible atoms, the gravitational equivalence principle and muonium. Measurements of these manipulation of antihydrogen atoms that has violation of the Pauli principle. Testing this to look for any differences between matter and systems offer tests of CPT in a different allowed spectroscopy to be performed on sacrosanct principle reminds me that, at measurement antimatter that would point to new physics. sector, but their short-lived nature could 15,000 antiatoms, were also presented. Tim CERN, we test charge-parity-time (CPT) The March meeting began with talks about make experiments here even more Friesen presented the hyperfine spectrum invariance with antinuclei and antiatoms. The Metrolab PT2026 sets a new antimatter in space. AMS-02 results, based on a challenging than those on antihydrogen. and Takamasa Momose presented the Two points struck me from the article. standard for precision magnetometers. sample of 3.49 × 105 antiprotons detected during Stefan Ulmer and Christian Smorra from spectroscopy of the 1S–2P transition. Chris First, the authors say, rightly, that 50 years ago the past four years onboard the International the AD’s BASE experiment described Rasmussen presented the 1S–2S lineshape, Freeman Dyson and Andrew Lenard proved Leveraging 30 years of expertise building Space Station, showed that antiprotons, protons how they managed to keep antiprotons in which gives a resonant frequency consistent that the “stability of matter” follows from the the world’s gold standard magnetometers, –12 and positrons have the same rigidity spectrum a magnetic trap for more than 400 days with that of hydrogen at a precision of 2 × 10 Pauli Principle. However, this proof was very it takes magnetic eld measurement to in the energy range 60–500 GeV. This is under an astonishingly low pressure of or an energy level of 2 × 10 –20 G eV, a l r e a dy complex and, in 1975, Elliott Lieb and Walter not expected in the case of pure secondary 5 × 10 –19 mbar. There is no gauge to measure exceeding the precision on the mass difference Thirring produced a much simpler proof that new heights: measuring higher elds with production and could be a hint of dark-matter such a value, only the lifetime of antiprotons between neutral kaons and antikaons. also gave almost realistic numbers for the better resolution. interactions (CERN Courier December 2016 and the probability of annihilation with ALPHA’s rapid progress suggests hydrogen- binding energy and the minimum volume p31). The development of facilities at the AD, residual gas in the trap. The feat allowed the like precision in antihydrogen is achievable, occupied by a neutral assembly of charged including the new ELENA facility, and at team to set the best direct limit so far on the opening unprecedented tests of CPT particles (Phys. Rev Lett. 36 687). I am slightly The PT2026 offers unprecedented exibility the Facility for Antiproton and Ion Research lifetime of the antiproton: 21.7 years (indirect symmetry (CERN Courier March 2018 p30). astonished that the authors do not quote this in the choice of parameters, interfacing Facility (FAIR), were also described. FAIR, observations from astrophysics indicate an The next edition of the LEAP conference paper, especially since one of the authors is and probe placement, as well as greatly under construction in Darmstadt, Germany, antiproton lifetime in the megayear range). will take place at Berkeley in the US in August from Vienna and I believed that Thirring was will increase the antiproton flux by at least The BASE measurement of the proton-to- 2020. Given the recent pace of research well known in this city. improved tolerance of inhomogeneous a factor of 10 compared to ELENA and antiproton charge over mass ratio (CERN in this relatively new field of fundamental The second point is historical and elds. And with Ethernet & USB interfaces allow new physics studies focusing, for Courier September 2015 p7) is consistent exploration, we can look forward to a wealth concerns the “modern form” of the Pauli and LabVIEW software, it ts perfectly into example, on the interactions between with CPT invariance and, with a precision of new results between now and then. principle expressed via the asymmetry antimatter and radioactive beams of 0.69 × 10 –12, it is the most stringent test of ● Patrice Pérez, CEA Saclay. of the wave function, as described by modern laboratory environments. the authors. When Pauli proposed the FCC study FCC Dallapiazza from ILF Consulting, who have exclusion principle in 1925, the Schrödinger le - Photo: Scott Maxwell, Master www.agence-arca.com FCC presents at been tasked with performing a cost and equation did not exist; Pauli was thinking schedule study for the civil-engineering in terms of an independent particle model aspects of the FCC study. where particles could be given definite tunnel congress The FCC could provide a facility able quantum numbers. My late friend, the to host machines in several different great theoretician Vladimir Glaser, told The World Tunnel Congress (WTC) collider modes, as well as four very large me that it was in fact Heisenberg who at the brings together leading tunnel and experimental caverns and service caverns at same time understood the usefulness of underground-space experts from all around depths of up to approximately 300 m below generalising the Schrödinger equation to N the world. This year, the congress was held in John Osborne presenting the FCC study at the surface. The key challenges for civil particles and replaced the Pauli principle Dubai from 21 to 26 April and was attended the 2018 World Tunnel Congress. engineering come from the difficult geology by the requirement of the asymmetry of the by nearly 2000 professionals, with case under Lake Geneva, the river Arve crossing wave function with respect to the exchange studies illuminating the latest trends and – would require one of the world’s largest and the area where the river Rhone exits the of electrons (including spin). We all know Pantone 286 Pantone 032 innovations and discussions about the role of ever underground projects, generating great Geneva basin. In addition, solutions for the how important the generalisation of the tunnels in supporting future sustainable cities. interest from WTC delegates. 9.2 million cubic metres of excavated rock Schrödinger equation was to N particles CERN’s Future Circular Collider (FCC) The extensive underground tunnel and other environmental issues need to be since it allows one to calculate the binding Magnetic precision has a name www.metrolab.com study – which is exploring the possibility of works required for FCC were presented by studied further. energy of any atomic or molecular system, a 100 km-circumference collider (see p15) John Osborne from CERN and by Werner ● John Osborne, CERN. given enough computing power. The
38 39
CCJun18_Faces&Places_v5.indd 38 18/05/2018 11:20 CCJun18_Faces&Places_v5.indd 39 18/05/2018 11:20 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8 CERN Courier June 2018 CERN Courier June 2018 Faces & Places Faces & Places
L e t t e r Schrödinger equation has even been used to Heisenberg: two on the many-body problem Antimatter research leaps ahead Renaming the calculate the masses of hadrons considered in quantum mechanics (Z. für Physik 38 411 as systems of quarks, its only defect being and Z. für Physik 41 239) and one on ions The 13th Low Energy Antiproton Physics that it is nonrelativistic. with two electrons (Z für Physik 39 1926).
(LEAP) conference was held from 12–16 HilicoL Pauli principle These facts are confirmed in the book Frankly, it is too late, but I think that one March at the Sorbonne University International called Out the Crystal Maze (Oxford should rename the Pauli principle as the Conference Center in Paris. A large part of University Press, 1997), which gives Pauli–Heisenberg principle. the conference focused on experiments at references to three fundamental papers of ● André Martin, formerly CERN. the CERN Antiproton Decelerator (AD), in particular the outstanding results recently obtained by ALPHA and BASE. One of the main goals of this field is to Participants of the 2018 Low Energy Antiproton Physics conference in Paris. explain the lack of antimatter observed in PT2026 NMR Precision Teslameter the present universe, which demands that (CERN Courier July/August 2017 p41). CPT with baryons. The BASE comparison of physicists look for any difference between Talks covering experimental results the magnetic moment of the proton and the matter and antimatter, apart from their and the theory of antiproton interactions antiproton at the level of 2 × 10 –10 is another The feature “Putting the Pauli exclusion Reach new heights quantum numbers. Specifically, experiments with matter, and the study of the physics impressive achievement and is also consistent principle on trial” (CERN Courier March at the AD make ultra-precise measurements of antihydrogen, were complemented with with CPT (CERN Courier March 2017 p7). 2018 p35) was extremely interesting, to test charge-party-time (CPT) invariance discussions on other types of antimatter Three new results from ALPHA, which describing highly accurate experiments in magnetic eld and soon, via the free-fall of antihydrogen systems, such as purely leptonic positronium has now achieved stable operation in the that have put severe limits on the possible atoms, the gravitational equivalence principle and muonium. Measurements of these manipulation of antihydrogen atoms that has violation of the Pauli principle. Testing this to look for any differences between matter and systems offer tests of CPT in a different allowed spectroscopy to be performed on sacrosanct principle reminds me that, at measurement antimatter that would point to new physics. sector, but their short-lived nature could 15,000 antiatoms, were also presented. Tim CERN, we test charge-parity-time (CPT) The March meeting began with talks about make experiments here even more Friesen presented the hyperfine spectrum invariance with antinuclei and antiatoms. The Metrolab PT2026 sets a new antimatter in space. AMS-02 results, based on a challenging than those on antihydrogen. and Takamasa Momose presented the Two points struck me from the article. standard for precision magnetometers. sample of 3.49 × 105 antiprotons detected during Stefan Ulmer and Christian Smorra from spectroscopy of the 1S–2P transition. Chris First, the authors say, rightly, that 50 years ago the past four years onboard the International the AD’s BASE experiment described Rasmussen presented the 1S–2S lineshape, Freeman Dyson and Andrew Lenard proved Leveraging 30 years of expertise building Space Station, showed that antiprotons, protons how they managed to keep antiprotons in which gives a resonant frequency consistent that the “stability of matter” follows from the the world’s gold standard magnetometers, –12 and positrons have the same rigidity spectrum a magnetic trap for more than 400 days with that of hydrogen at a precision of 2 × 10 Pauli Principle. However, this proof was very it takes magnetic eld measurement to in the energy range 60–500 GeV. This is under an astonishingly low pressure of or an energy level of 2 × 10 –20 G eV, a l r e a dy complex and, in 1975, Elliott Lieb and Walter not expected in the case of pure secondary 5 × 10 –19 mbar. There is no gauge to measure exceeding the precision on the mass difference Thirring produced a much simpler proof that new heights: measuring higher elds with production and could be a hint of dark-matter such a value, only the lifetime of antiprotons between neutral kaons and antikaons. also gave almost realistic numbers for the better resolution. interactions (CERN Courier December 2016 and the probability of annihilation with ALPHA’s rapid progress suggests hydrogen- binding energy and the minimum volume p31). The development of facilities at the AD, residual gas in the trap. The feat allowed the like precision in antihydrogen is achievable, occupied by a neutral assembly of charged including the new ELENA facility, and at team to set the best direct limit so far on the opening unprecedented tests of CPT particles (Phys. Rev Lett. 36 687). I am slightly The PT2026 offers unprecedented exibility the Facility for Antiproton and Ion Research lifetime of the antiproton: 21.7 years (indirect symmetry (CERN Courier March 2018 p30). astonished that the authors do not quote this in the choice of parameters, interfacing Facility (FAIR), were also described. FAIR, observations from astrophysics indicate an The next edition of the LEAP conference paper, especially since one of the authors is and probe placement, as well as greatly under construction in Darmstadt, Germany, antiproton lifetime in the megayear range). will take place at Berkeley in the US in August from Vienna and I believed that Thirring was will increase the antiproton flux by at least The BASE measurement of the proton-to- 2020. Given the recent pace of research well known in this city. improved tolerance of inhomogeneous a factor of 10 compared to ELENA and antiproton charge over mass ratio (CERN in this relatively new field of fundamental The second point is historical and elds. And with Ethernet & USB interfaces allow new physics studies focusing, for Courier September 2015 p7) is consistent exploration, we can look forward to a wealth concerns the “modern form” of the Pauli and LabVIEW software, it ts perfectly into example, on the interactions between with CPT invariance and, with a precision of new results between now and then. principle expressed via the asymmetry antimatter and radioactive beams of 0.69 × 10 –12, it is the most stringent test of ● Patrice Pérez, CEA Saclay. of the wave function, as described by modern laboratory environments. the authors. When Pauli proposed the FCC study FCC Dallapiazza from ILF Consulting, who have exclusion principle in 1925, the Schrödinger le - Photo: Scott Maxwell, Master www.agence-arca.com FCC presents at been tasked with performing a cost and equation did not exist; Pauli was thinking schedule study for the civil-engineering in terms of an independent particle model aspects of the FCC study. where particles could be given definite tunnel congress The FCC could provide a facility able quantum numbers. My late friend, the to host machines in several different great theoretician Vladimir Glaser, told The World Tunnel Congress (WTC) collider modes, as well as four very large me that it was in fact Heisenberg who at the brings together leading tunnel and experimental caverns and service caverns at same time understood the usefulness of underground-space experts from all around depths of up to approximately 300 m below generalising the Schrödinger equation to N the world. This year, the congress was held in John Osborne presenting the FCC study at the surface. The key challenges for civil particles and replaced the Pauli principle Dubai from 21 to 26 April and was attended the 2018 World Tunnel Congress. engineering come from the difficult geology by the requirement of the asymmetry of the by nearly 2000 professionals, with case under Lake Geneva, the river Arve crossing wave function with respect to the exchange studies illuminating the latest trends and – would require one of the world’s largest and the area where the river Rhone exits the of electrons (including spin). We all know Pantone 286 Pantone 032 innovations and discussions about the role of ever underground projects, generating great Geneva basin. In addition, solutions for the how important the generalisation of the tunnels in supporting future sustainable cities. interest from WTC delegates. 9.2 million cubic metres of excavated rock Schrödinger equation was to N particles CERN’s Future Circular Collider (FCC) The extensive underground tunnel and other environmental issues need to be since it allows one to calculate the binding Magnetic precision has a name www.metrolab.com study – which is exploring the possibility of works required for FCC were presented by studied further. energy of any atomic or molecular system, a 100 km-circumference collider (see p15) John Osborne from CERN and by Werner ● John Osborne, CERN. given enough computing power. The
38 39
CCJun18_Faces&Places_v5.indd 38 18/05/2018 11:20 CCJun18_Faces&Places_v5.indd 39 18/05/2018 11:20 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8 CERN Courier June 2018 CERN Courier June 2018 Faces & Places Faces & Places
O b i t u a r i e s Enzo Bertolini 1932–2017 Vincenzo Palmieri 1962–2018 Born in Verona, Italy, on 4 May 1932, Enzo his collaboration with the University of Vincenzo Palmieri, one of the most Vincenzo was the inventor of several Bertolini graduated in electrical engineering California at Davis and Santa Barbara, active members of the superconducting C Pira breakthrough techniques in SRF. This and, subsequently, in applied nuclear physics first as visiting professor and, from 1988, radio-frequency (SRF) community, passed includes the development of seamless at the University of Padua in 1959. He then as adjunct professor, teaching in the field away on 16 March. Vincenzo graduated cavities by spinning and of various F Fillietroz-Onlus F started his research work at CERN in the field of energy conversion. From 1999 to 2007 cum laude in physics at the University of chemical treatments to reduce the cost and of high-energy physics. There he worked with he served as consultant for the government Naples Federico II in 1987, and started his environmental impact while improving a talented young man named Carlo Rubbia, of South Korea in the field of fusion career in the group of Cristoforo Benvenuti cavity performances. and the pair carried out some important work energy. He has also been on scientific and at CERN, as a technical student. Then he He collaborated with numerous institutes for the epoch – for example, determining the technical committees at CERN (including was hired by INFN in Legnaro to develop across the world, including CERN and muon total capture rate in liquid hydrogen. contributions for the design of the ATLAS techniques to sputter quarter-wave cavities DESY, contributed to more than 280 In 1962 Bertolini moved to Frascati experiment at LHC), the Italian Space for the ALPI accelerator, where he founded publications, held three patents and was the (ENEA, Italy) to work on plasma physics and Agency, and more recently he was an and was responsible for the Laboratory of supervisor and tutor of about 100 theses. explore electricity generation via a magnetic- evaluator of research proposals for the EU Superconductivity and Surface treatments. He also drove many contract agreements hydrodynamic generator. From 1973 to 1997 Bertolini worked across many physics fields. Framework Programme. From 2006 to 2016 Vincenzo was a unique character in the between research institutes and industries. he was a member of the directorate of the EU he was director of the Fondazione Clément SRF community, always giving inspiring Vincenzo was an expert in superconducting RF. Vincenzo leaves a large community JET project based in the UK, where eventually should prove the feasibility of a thermonuclear Fillietroz-ONLUS (Aosta Valley, Italy), seminars and colouring them with of colleagues, students and friends with he became chief engineer. JET is currently the reactor for the production of electricity. operating the Astronomical Observatory of unconventional pictures and videos. He knowledge and train young researchers, a legacy of inventions, anecdotes and an most important experiment in the world for In his many fields of expertise – particle the Autonomous Region of the Aosta Valley had an out-of-the-ordinary energy that has and proposed and directed a master’s inextinguishable example of enthusiasm, the study of fusion energy: in 1991 it produced physics, electricity generation, plasma and the Planetarium of Lignan. pushed the entire community to look for new course at the University of Padua in surface integrity and love for science. Our thoughts a small amount of fusion power (1.7 MW) physics, fusion, astronomy and astrophysics Enzo Bertolini passed away in his home in ideas and challenges. treatments for industrial applications. He go to his wife Emanuela and his daughters for the first time on Earth, rising to 16 MW in – Bertolini presented at international the Aosta Valley on 30 June last year. He was He also had countless interests outside was convinced of the necessity for science Eulalia and Ludmilla, who were always the 1997. These results have been instrumental in conferences and published more than a true “man of science”. physics, from bonsai art and languages to meet industry, making him one of the first and constant topic of conversation with the design and construction of ITER, which 120 scientific papers. In 1969 he started ● Jean Marc Christille and his colleagues at Lignan. to chess, table tennis and graphology. pioneers of technology transfer in the his friends. He was always motivated to share his accelerator community. ● His friends and colleagues. Ferdinand Hahn 1959–2018 Richard Taylor 1929–2018 It was with great sadness that we learned that experiment with considerable commitment Ferdi Hahn passed away on 4 March. He was and great competence in many experimental Richard E Taylor died at the age of 88 on that established SLAC in the forefront of an enthusiastic and highly skilled colleague, aspects. Through the preparation of 22 February at his home on the Stanford SLAC particle physics. and an openhearted friend. the Technical Design Report and the campus in the US. Taylor was the co-recipient Taylor led his group at SLAC into a Private collection Ferdi first came to CERN in 1987 as coordination of the entire installation of the of the 1990 Nobel Prize in Physics, along collaboration with Caltech and MIT that technical student of the University of experiment, his exquisite ability to bring with Henry Kendall and Jerome Friedman foresaw the rise of powerful particle-physics Wuppertal, when he joined the barrel-RICH collaborators from all kinds of cultures of MIT, for their discoveries of scaling in collaborations now at the scale of a few project for the DELPHI experiment at LEP. As together was clearly an asset for the success deep-inelastic electron–proton scattering. It thousand physicists for the major LHC part of his diploma thesis, he participated in the of the project. was these results that led to the experimental experiments. That collaboration proposed and photon detector project, SYBIL, a TPC-like Knowing that the NA62 experiment was demonstration of the existence of quarks. carried out a series of experiments beginning drift chamber with single photoelectron operating smoothly, Ferdi happily agreed Taylor was born in Medicine Hat, Alberta, with the elastic scattering of electrons off detection, which was a prototype of the Ferdi played major roles in the DELPHI to support the physics department as deputy Canada, to Clarence and Delia Taylor. He was protons at high momentum transfer in 1967. DELPHI barrel-RICH system. and NA62 experiments. head in 2015. As part of the management, interested in a career as a surgeon, but an early The measurements extended those made by Here, Ferdi became very much acquainted he was in charge of the coordination of explosion while using a chemistry set as a child Taylor helped establish the reality of quarks. Richard Hofstadter at HEPL, but led to no with all hardware and software aspects of protons using the DELPHI detector, taking the technical groups in the department, cost him parts of two fingers and the thumb on surprises. such a test program, both in the innumerable advantage of the unique RICH system. including the planning of personnel. With his left hand – and thus pushed him towards a 1962. Wolfgang Panofsky invited him to join The proposal for deep-inelastic scattering technical matters and in the analysis of the In 1995 Ferdi joined the CERN physics his pleasant manner, patience and exemplary career in science. He was an undergraduate at the core group building the Stanford Linear had no mention of point-like particles in the data taken. From 1990, as a CERN fellow, he department as a member of the DELPHI communication skills, he solved numerous the University of Alberta, receiving a bachelor Accelerator Center (SLAC), roughly 1 km west nucleon. The inelastic cross sections beyond was heavily involved in the commissioning gas group. As section leader in the support tricky problems. and then master of science in 1952. At Alberta, of the main Stanford campus. Taylor was given the nucleon resonances were unexpectedly of the drift tubes of the RICH detector, a groups to CERN experiments and deputy Ferdi was treasured as a close colleague he married Rita Bonneau in 1951. responsibility for the “Beam Switchyard” at large and flat with increasing momentum particularity of the DELPHI experiment, group leader of the DELPHI detector unit, by many; it was a pleasure to work with him. Taylor then went to Stanford, working at the end of the linear accelerator that analysed transfer, especially when compared to followed by the development of the he perfected the operation of the many His open character and smile made it easy the Stanford High Energy Physics Laboratory and steered beams to experiments and for elastic scattering. The data also displayed temperature control of the barrel RICH. and complex DELPHI gas systems. He to discuss subjects, even when they involved (HEPL). In 1958, he was invited by colleagues the large “End Station A” and its electron a simplifying feature called scaling – a A specific part of the detector was not also structured the LHC experiments gas complicated issues. He was enthusiastic at École Normale Supérieure in Orsay to work spectrometers. Taylor organised a talented prediction by Bjorken from current algebra delivered in time, so Ferdi immediately working-group, which led to a professional and full of energy, always ready to help. on experiments for their new accelerator at the group at SLAC including David Coward and – suggesting that deep-inelastic cross drove 800 km to the company and back and efficient system for all LHC detectors. His friendly way of dealing with people Laboratoire de l’Accelerateur Lineare. After Herbert (Hobie) DeStaebler, which carried sections could be expressed as a function of again to allow the start of data taking on After having led the detector technology was backed up by a deep competence in three years, he returned to the US, spending out the design and construction of these major one kinematic variable. These results were time in 1989. Later, Ferdi completed his group of the physics department between technical issues. He was one of a kind and a year at Lawrence Berkeley National facilities. The three electron spectrometers extended by Taylor’s group and MIT into PhD with a measurement of the differential 2007 and 2008, Ferdi then took over will be sadly missed. Laboratory. He then returned to Stanford to with momentum ranges centered around 1.6, 8 more kinematic regions and to studies of the s cross-sections of charged kaons and the technical coordination of the NA62 ● His friends and colleagues. complete his PhD under Robert Mosely in and 20 GeV/c made the critical measurements neutron with a deuterium target.
40 41
CCJun18_Faces&Places_v5.indd 40 18/05/2018 11:21 CCJun18_Faces&Places_v5.indd 41 18/05/2018 11:21 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8 CERN Courier June 2018 CERN Courier June 2018 Faces & Places Faces & Places
O b i t u a r i e s Enzo Bertolini 1932–2017 Vincenzo Palmieri 1962–2018 Born in Verona, Italy, on 4 May 1932, Enzo his collaboration with the University of Vincenzo Palmieri, one of the most Vincenzo was the inventor of several Bertolini graduated in electrical engineering California at Davis and Santa Barbara, active members of the superconducting C Pira breakthrough techniques in SRF. This and, subsequently, in applied nuclear physics first as visiting professor and, from 1988, radio-frequency (SRF) community, passed includes the development of seamless at the University of Padua in 1959. He then as adjunct professor, teaching in the field away on 16 March. Vincenzo graduated cavities by spinning and of various F Fillietroz-Onlus F started his research work at CERN in the field of energy conversion. From 1999 to 2007 cum laude in physics at the University of chemical treatments to reduce the cost and of high-energy physics. There he worked with he served as consultant for the government Naples Federico II in 1987, and started his environmental impact while improving a talented young man named Carlo Rubbia, of South Korea in the field of fusion career in the group of Cristoforo Benvenuti cavity performances. and the pair carried out some important work energy. He has also been on scientific and at CERN, as a technical student. Then he He collaborated with numerous institutes for the epoch – for example, determining the technical committees at CERN (including was hired by INFN in Legnaro to develop across the world, including CERN and muon total capture rate in liquid hydrogen. contributions for the design of the ATLAS techniques to sputter quarter-wave cavities DESY, contributed to more than 280 In 1962 Bertolini moved to Frascati experiment at LHC), the Italian Space for the ALPI accelerator, where he founded publications, held three patents and was the (ENEA, Italy) to work on plasma physics and Agency, and more recently he was an and was responsible for the Laboratory of supervisor and tutor of about 100 theses. explore electricity generation via a magnetic- evaluator of research proposals for the EU Superconductivity and Surface treatments. He also drove many contract agreements hydrodynamic generator. From 1973 to 1997 Bertolini worked across many physics fields. Framework Programme. From 2006 to 2016 Vincenzo was a unique character in the between research institutes and industries. he was a member of the directorate of the EU he was director of the Fondazione Clément SRF community, always giving inspiring Vincenzo was an expert in superconducting RF. Vincenzo leaves a large community JET project based in the UK, where eventually should prove the feasibility of a thermonuclear Fillietroz-ONLUS (Aosta Valley, Italy), seminars and colouring them with of colleagues, students and friends with he became chief engineer. JET is currently the reactor for the production of electricity. operating the Astronomical Observatory of unconventional pictures and videos. He knowledge and train young researchers, a legacy of inventions, anecdotes and an most important experiment in the world for In his many fields of expertise – particle the Autonomous Region of the Aosta Valley had an out-of-the-ordinary energy that has and proposed and directed a master’s inextinguishable example of enthusiasm, the study of fusion energy: in 1991 it produced physics, electricity generation, plasma and the Planetarium of Lignan. pushed the entire community to look for new course at the University of Padua in surface integrity and love for science. Our thoughts a small amount of fusion power (1.7 MW) physics, fusion, astronomy and astrophysics Enzo Bertolini passed away in his home in ideas and challenges. treatments for industrial applications. He go to his wife Emanuela and his daughters for the first time on Earth, rising to 16 MW in – Bertolini presented at international the Aosta Valley on 30 June last year. He was He also had countless interests outside was convinced of the necessity for science Eulalia and Ludmilla, who were always the 1997. These results have been instrumental in conferences and published more than a true “man of science”. physics, from bonsai art and languages to meet industry, making him one of the first and constant topic of conversation with the design and construction of ITER, which 120 scientific papers. In 1969 he started ● Jean Marc Christille and his colleagues at Lignan. to chess, table tennis and graphology. pioneers of technology transfer in the his friends. He was always motivated to share his accelerator community. ● His friends and colleagues. Ferdinand Hahn 1959–2018 Richard Taylor 1929–2018 It was with great sadness that we learned that experiment with considerable commitment Ferdi Hahn passed away on 4 March. He was and great competence in many experimental Richard E Taylor died at the age of 88 on that established SLAC in the forefront of an enthusiastic and highly skilled colleague, aspects. Through the preparation of 22 February at his home on the Stanford SLAC particle physics. and an openhearted friend. the Technical Design Report and the campus in the US. Taylor was the co-recipient Taylor led his group at SLAC into a Private collection Ferdi first came to CERN in 1987 as coordination of the entire installation of the of the 1990 Nobel Prize in Physics, along collaboration with Caltech and MIT that technical student of the University of experiment, his exquisite ability to bring with Henry Kendall and Jerome Friedman foresaw the rise of powerful particle-physics Wuppertal, when he joined the barrel-RICH collaborators from all kinds of cultures of MIT, for their discoveries of scaling in collaborations now at the scale of a few project for the DELPHI experiment at LEP. As together was clearly an asset for the success deep-inelastic electron–proton scattering. It thousand physicists for the major LHC part of his diploma thesis, he participated in the of the project. was these results that led to the experimental experiments. That collaboration proposed and photon detector project, SYBIL, a TPC-like Knowing that the NA62 experiment was demonstration of the existence of quarks. carried out a series of experiments beginning drift chamber with single photoelectron operating smoothly, Ferdi happily agreed Taylor was born in Medicine Hat, Alberta, with the elastic scattering of electrons off detection, which was a prototype of the Ferdi played major roles in the DELPHI to support the physics department as deputy Canada, to Clarence and Delia Taylor. He was protons at high momentum transfer in 1967. DELPHI barrel-RICH system. and NA62 experiments. head in 2015. As part of the management, interested in a career as a surgeon, but an early The measurements extended those made by Here, Ferdi became very much acquainted he was in charge of the coordination of explosion while using a chemistry set as a child Taylor helped establish the reality of quarks. Richard Hofstadter at HEPL, but led to no with all hardware and software aspects of protons using the DELPHI detector, taking the technical groups in the department, cost him parts of two fingers and the thumb on surprises. such a test program, both in the innumerable advantage of the unique RICH system. including the planning of personnel. With his left hand – and thus pushed him towards a 1962. Wolfgang Panofsky invited him to join The proposal for deep-inelastic scattering technical matters and in the analysis of the In 1995 Ferdi joined the CERN physics his pleasant manner, patience and exemplary career in science. He was an undergraduate at the core group building the Stanford Linear had no mention of point-like particles in the data taken. From 1990, as a CERN fellow, he department as a member of the DELPHI communication skills, he solved numerous the University of Alberta, receiving a bachelor Accelerator Center (SLAC), roughly 1 km west nucleon. The inelastic cross sections beyond was heavily involved in the commissioning gas group. As section leader in the support tricky problems. and then master of science in 1952. At Alberta, of the main Stanford campus. Taylor was given the nucleon resonances were unexpectedly of the drift tubes of the RICH detector, a groups to CERN experiments and deputy Ferdi was treasured as a close colleague he married Rita Bonneau in 1951. responsibility for the “Beam Switchyard” at large and flat with increasing momentum particularity of the DELPHI experiment, group leader of the DELPHI detector unit, by many; it was a pleasure to work with him. Taylor then went to Stanford, working at the end of the linear accelerator that analysed transfer, especially when compared to followed by the development of the he perfected the operation of the many His open character and smile made it easy the Stanford High Energy Physics Laboratory and steered beams to experiments and for elastic scattering. The data also displayed temperature control of the barrel RICH. and complex DELPHI gas systems. He to discuss subjects, even when they involved (HEPL). In 1958, he was invited by colleagues the large “End Station A” and its electron a simplifying feature called scaling – a A specific part of the detector was not also structured the LHC experiments gas complicated issues. He was enthusiastic at École Normale Supérieure in Orsay to work spectrometers. Taylor organised a talented prediction by Bjorken from current algebra delivered in time, so Ferdi immediately working-group, which led to a professional and full of energy, always ready to help. on experiments for their new accelerator at the group at SLAC including David Coward and – suggesting that deep-inelastic cross drove 800 km to the company and back and efficient system for all LHC detectors. His friendly way of dealing with people Laboratoire de l’Accelerateur Lineare. After Herbert (Hobie) DeStaebler, which carried sections could be expressed as a function of again to allow the start of data taking on After having led the detector technology was backed up by a deep competence in three years, he returned to the US, spending out the design and construction of these major one kinematic variable. These results were time in 1989. Later, Ferdi completed his group of the physics department between technical issues. He was one of a kind and a year at Lawrence Berkeley National facilities. The three electron spectrometers extended by Taylor’s group and MIT into PhD with a measurement of the differential 2007 and 2008, Ferdi then took over will be sadly missed. Laboratory. He then returned to Stanford to with momentum ranges centered around 1.6, 8 more kinematic regions and to studies of the s cross-sections of charged kaons and the technical coordination of the NA62 ● His friends and colleagues. complete his PhD under Robert Mosely in and 20 GeV/c made the critical measurements neutron with a deuterium target.
40 41
CCJun18_Faces&Places_v5.indd 40 18/05/2018 11:21 CCJun18_Faces&Places_v5.indd 41 18/05/2018 11:21 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8 CERN Courier June 2018 PERIODIC Faces & Places TABLE OF THE Standard 3500 Catalogue items Standard 3500 Catalogue items At the “Rochester Conference” in Vienna through his life. He was awarded a doctorate Association for the Advancement of Science, ELEMENTS in 1968, Panofsky summed up the first public (Honoris Causa) by the Université de Royal Society and the Royal Society of results of the experiments with the comment: Paris-Sud. After becoming a member of Canada. He was also a member of the the SLAC faculty in 1968, Taylor won a American Academy of Arts and Sciences and “Therefore, theoretical speculations are Data provided by kind permission of www.webelements.com
focused on the possibility that these data Guggenheim fellowship and spent a sabbatical the Canadian Association of Physics, a foreign Data provided by kind permission of www.webelements.com
might give evidence on the behaviour of year at CERN. He received an Alexander von associate of the National Academy of Science, 95.96 point-like, charged structures within the Humboldt award and spent the 1981–1982 and Companion of the Order of Canada. 95.96 nucleon.” Following a visit to SLAC in academic year at DESY. Taylor’s group at Taylor stayed rooted to his Canadian origins, August 1968, Richard Feynman introduced SLAC was a lively place, with many young often vacationing in Medicine Hat where he his “naïve parton theory” in which electrons European visitors who became staunch maintained a home and enjoyed fly fishing in Flerovium Livermorium FleroviumFl LivermoriumLv scattered from point-like free partons give colleagues and friends. the local streams. He always saw himself as an [289] Fl Lv [294] both the observed weak momentum-transfer In 1978, an experiment at SLAC led by experimentalist, saying in a 2008 Nobel-prize [289] [294] dependence and scaling. Subsequent Charles Prescott and Taylor demonstrated interview: “My job was to measure things and experiments by Taylor and collaborators parity violation in polarised electron– to make sure that the measurements were right.
allowed the two nucleon structure functions deuterium scattering – a very challenging It is the job of the theoretical community to 1529
to be separated, determining that the partons experiment that followed negative results understand why things are the way that I see 1529 were spin-½ particles. Evaluations of sum from atomic-physics experiments. Parity them when I do experiments.” 13.78 13.50 rules derived by Bjorken and Kurt Gottfried violation was the essential component of Taylor was a large man and pretended to 1050 1750 13.78 13.50 were consistent with charge assignments in the the unification of the electromagnetic and enjoy a reputation of being somewhat fierce. 1050 1750 nascent quark model. Finally, the Gargamelle weak interactions, another key chunk of the His friends and colleagues all knew him as neutrino and antineutrino results at CERN Standard Model that led to the Nobel Prize for a gentle soul, caring deeply for SLAC and confirmed the Gell–Mann–Zweig quark Sheldon Glashow, Abdus Salam and Steven always promoting the younger generations of model, and these experiments collectively gave Weinberg in 1979. scientists. He is survived by his wife Rita and rise to the Standard Model of particle physics. Taylor also was awarded the W K H son Ted. Taylor’s connections to Paris, and later Panofsky Prize, and was a fellow of the ● Martin Breidenbach and Charles Prescott, SLAC DESY and CERN, continued as a theme American Physical Society, American National Accelerator Laboratory. advent-rm.com Small Quantities Competitive Prices Fast Shipment [email protected]
Oakfield Industrial Estate, Eynsham, Oxford, England, OX29 4JA tel +44 1865 88 4440
Design, build and test components and systems for scientific research You know what you want to detect:
- X-rays - Gamma-rays - Neutrons - Particles
SCIONIX Holland B.V. Tel. +31 30 6570312 ALCA TECHNOLOGY S.r.l. Fax. +31 30 6567563 We know how to Via Lago di Garda, Email. [email protected] 130 - 36015 Schio (VI) - Italia build your detectors Tel. +39 0445 500064 www.scionix.nl E-Mail: [email protected]
42
CCJun18_Faces&Places_v5.indd 42 18/05/2018 11:21 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8 CERN Courier June 2018 PERIODIC Faces & Places TABLE OF THE Standard 3500 Catalogue items Standard 3500 Catalogue items At the “Rochester Conference” in Vienna through his life. He was awarded a doctorate Association for the Advancement of Science, ELEMENTS in 1968, Panofsky summed up the first public (Honoris Causa) by the Université de Royal Society and the Royal Society of results of the experiments with the comment: Paris-Sud. After becoming a member of Canada. He was also a member of the the SLAC faculty in 1968, Taylor won a American Academy of Arts and Sciences and “Therefore, theoretical speculations are Data provided by kind permission of www.webelements.com
focused on the possibility that these data Guggenheim fellowship and spent a sabbatical the Canadian Association of Physics, a foreign Data provided by kind permission of www.webelements.com
might give evidence on the behaviour of year at CERN. He received an Alexander von associate of the National Academy of Science, 95.96 point-like, charged structures within the Humboldt award and spent the 1981–1982 and Companion of the Order of Canada. 95.96 nucleon.” Following a visit to SLAC in academic year at DESY. Taylor’s group at Taylor stayed rooted to his Canadian origins, August 1968, Richard Feynman introduced SLAC was a lively place, with many young often vacationing in Medicine Hat where he his “naïve parton theory” in which electrons European visitors who became staunch maintained a home and enjoyed fly fishing in Flerovium Livermorium FleroviumFl LivermoriumLv scattered from point-like free partons give colleagues and friends. the local streams. He always saw himself as an [289] Fl Lv [294] both the observed weak momentum-transfer In 1978, an experiment at SLAC led by experimentalist, saying in a 2008 Nobel-prize [289] [294] dependence and scaling. Subsequent Charles Prescott and Taylor demonstrated interview: “My job was to measure things and experiments by Taylor and collaborators parity violation in polarised electron– to make sure that the measurements were right.
allowed the two nucleon structure functions deuterium scattering – a very challenging It is the job of the theoretical community to 1529
to be separated, determining that the partons experiment that followed negative results understand why things are the way that I see 1529 were spin-½ particles. Evaluations of sum from atomic-physics experiments. Parity them when I do experiments.” 13.78 13.50 rules derived by Bjorken and Kurt Gottfried violation was the essential component of Taylor was a large man and pretended to 1050 1750 13.78 13.50 were consistent with charge assignments in the the unification of the electromagnetic and enjoy a reputation of being somewhat fierce. 1050 1750 nascent quark model. Finally, the Gargamelle weak interactions, another key chunk of the His friends and colleagues all knew him as neutrino and antineutrino results at CERN Standard Model that led to the Nobel Prize for a gentle soul, caring deeply for SLAC and confirmed the Gell–Mann–Zweig quark Sheldon Glashow, Abdus Salam and Steven always promoting the younger generations of model, and these experiments collectively gave Weinberg in 1979. scientists. He is survived by his wife Rita and rise to the Standard Model of particle physics. Taylor also was awarded the W K H son Ted. Taylor’s connections to Paris, and later Panofsky Prize, and was a fellow of the ● Martin Breidenbach and Charles Prescott, SLAC DESY and CERN, continued as a theme American Physical Society, American National Accelerator Laboratory. advent-rm.com Small Quantities Competitive Prices Fast Shipment [email protected]
Oakfield Industrial Estate, Eynsham, Oxford, England, OX29 4JA tel +44 1865 88 4440
Design, build and test components and systems for scientific research You know what you want to detect:
- X-rays - Gamma-rays - Neutrons - Particles
SCIONIX Holland B.V. Tel. +31 30 6570312 ALCA TECHNOLOGY S.r.l. Fax. +31 30 6567563 We know how to Via Lago di Garda, Email. [email protected] 130 - 36015 Schio (VI) - Italia build your detectors Tel. +39 0445 500064 www.scionix.nl E-Mail: [email protected]
42
CCJun18_Faces&Places_v5.indd 42 18/05/2018 11:21 CERNCOURIER www. V o l u m e 5 8 N u m b e r 5 J u n e 2 0 1 8