CERN Courier June 2017 Faces & Places

A w A r d s Tim Berners-Lee receives Turing Award

On 4 April, CERN alumnus Tim Berners-Lee received the 2016 A M Turing Award for his

invention of the World Wide Web, the first ClarkePaul web browser, and the fundamental protocols and algorithms allowing the web to scale. Named in honour of British mathematician and computer scientist Alan Turing, and often referred to as the Nobel prize of computing, the annual award of $1 million is given by the Association for Computing Machinery. In 1989, while working at CERN, Berners-Lee wrote a proposal for a new information- management system for the laboratory, and by the end of the following year he had invented one of the most influential computing innovations in history – the World Wide Web. Berners-Lee is now a professor at Massachusetts Institute of Technology and the University of Oxford, and director of the World Wide Web Consortium and the World Berners-Lee created the first web-serving software in open-source fashion, catalysing the Wide Web Foundation. web’s development. ICTP Dirac medallists 2016 The International Centre for Theoretical Physics 2016 has been ® awarded to Nathan Seiberg of the Institute for Advanced Study in Princeton, and Mileon – the longest hollow Mikhail Shifman and Arkady Vainshtein of the University of Minnesota. The award recognises the trio’s important contributions conductor in the world to field theories in the non-perturbative regime and in particular for exact results Developed in response to the customer demand obtained in supersymmetric field theories. for seamless magnetic windings. Nathan Seiberg (left), Mikhail Shifman (middle) and Arkady Vainshtein (right) have made important contributions to supersymmetric field theories.

AsMeet seen us at IPAC17,at IPAC’17 Copenhagen May 14-19 Paolo Gunnellini and Maria Ubiali receive Guido Altarelli the prize, which was established in 2016 to honour the memory of CERN theorist Guido Award 2017 Altarelli.

The second edition of the Guido Altarelli of proton parton density functions, and in Award, given to young scientists in the field particular for her seminal contributions of deep inelastic scattering and related to the understanding of heavy-quark www.luvata.com subjects, was awarded to two researchers dynamics. Experimentalist Paolo during the 2017 Deep Inelastic Scattering Gunnellini of DESY, who is a member of workshop held in Birmingham, UK, the CMS collaboration, received the award on 3 April. Maria Ubiali of Cambridge for his innovative ideas in the study of University in the UK was recognised for double parton scattering and in Monte Carlo her theoretical contributions in the field tuning.

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Luvata_Mileon_CERN_FP_advert_ 03_17.indd 1 04/04/2017 10:59 CERNCOURIER www. V o l u m e 5 7 N u m b e r 5 J u n e 2 0 1 7 CERN Courier June 2017 CERN Courier June 2017 Faces & Places Faces & Places Prizes galore for IceCube members Image credits: (clockwise from top left) S Yoshida; NBI; DESY; University of Texas at Arlington at Texas of University DESY; NBI; S Yoshida; left) top from (clockwise credits: Image Four members of the IceCube neutrino observatory, based at the South Pole, have independently won awards recognising their contributions to the field. Aya Ishihara of Chiba University in Japan was awarded the 37th annual Saruhashi Prize, given each year to a female scientist under the age of 50 for exceptional research accomplishments. This C o n f e r e n C e s year’s prize, presented in Tokyo on 27 May, cites Ishihara’s contributions to high-energy Beam gymnastics astronomy with the IceCube detector. PT2026 NMR Precision Teslameter Fellow IceCube collaborator Subir Sarkar of the University of Oxford, UK, and the Niels in Sicily Bohr Institute in Denmark has won the 4th Reach new heights Homi Bhabha prize. Awarded since 2010 by The CERN Accelerator School (CAS) the Tata Institute of Fundamental Research organised a specialised course devoted (TIFR) in India and the International Union to beam injection, extraction and transfer in magnetic eld of Pure and Applied Physics, the prize in Erice, Sicily, from 10 to 19 March. The recognises an active scientist who has made course was held in the Ettore Majorana measurement distinguished contributions in the field of Foundation and Centre, and was attended by high-energy cosmic-ray and astroparticle 72 participants from 25 countries including physics over an extended academic career. China, Iran, Russia and the US. The Metrolab PT2026 sets a new Sarkar has also worked on the Pierre The intensive programme comprised standard for precision magnetometers. Auger Observatory and is a member of the 32 lectures and two seminars, with 10 hours Leveraging 30 years of expertise building Cherenkov Telescope Array collaboration. of case studies allowing students to apply Meanwhile, former IceCube spokesperson (Clockwise from top left) Aya Ishihara, Subir Sarkar, Christian Spiering and Ben Jones. their knowledge to real problems. Following the world’s gold standard magnetometers, Christian Spiering from DESY has won the introductory talks on electromagnetism, it takes magnetic  eld measurement to O’Ceallaigh Medal for astroparticle physics, outstanding contributions to cosmic-ray Finally, IceCube member Ben Jones of the relativity and the basics of beam dynamics, new heights: measuring higher elds with awarded every second year by the Dublin physics and to the newly emerging field of University of Texas at Arlington has won the different injection and extraction schemes Institute for Advanced Studies. Spiering, neutrino astronomy in particular”. Both he APS 2017 Mitsuyoshi Tanaka Dissertation were presented. Detailed lectures about the better resolution. who led the collaboration from 2005 to 2007 and Sarkar will receive their awards at the Award in Experimental Particle Physics, special magnetic and electrostatic elements and also played a key role in the Lake Baikal 35th International Cosmic Ray Conference in for his thesis “Sterile Neutrinos in Cold for the case of lepton and hadron beams The PT2026 offers unprecedented  exibility Neutrino Telescope, was honoured “for his Busan, South Korea, on 13 July. Climates”. followed. State-of-the-art kicker and septa designs were discussed, as were issues in the choice of parameters, interfacing A Purcell related to stripping-injection and resonant and probe placement, as well as greatly Firms to begin extraction as used in medical settings. improved tolerance of inhomogeneous An overview of optics measurements in prototyping the storage rings and non-periodic structures elds. And with Ethernet & USB interfaces completed the programme, with talks about and LabVIEW software, it  ts perfectly into science cloud the production of secondary and radioactive modern laboratory environments. beams and exotic injection methods.

The next CAS course, focusing on le - Photo: Scott Maxwell, Master www.agence-arca.com advanced accelerator physics, will take An awards ceremony took place at CERN place at Royal Holloway University in the on 3 April recognising companies that UK from 3–15 September. Later in the year, have won contracts to start building the CAS is participating in a joint venture in prototype phase of the Helix Nebula collaboration with the accelerator schools Science Cloud (HNSciCloud). Initiated of the US, Japan and Russia. This school by CERN in 2016, HNSciCloud is a is devoted to RF technologies and will be €5.3 million pre-commercial procurement held in Japan from 16–26 October. Looking tender driven by 10 leading research Award winners and participants at the ceremony, which marks the official beginning of further ahead, schools are currently planned organisations and funded by the European the prototype phase of the pre-commercial procurement process for the Helix Nebula in 2018 on accelerator physics at the Commission. Its aim is to establish a Science Cloud. introductory level, on future colliders and on

European cloud platform to support beam instrumentation and diagnostics. See Pantone 286 Pantone 032 high-performance computing and big-data design, prototype development and pilot SixSq. Each presented its plans to build https://www.cern.ch/schools/CAS. capabilities for scientific research. The use of innovative cloud services. The the HNSciCloud prototype and the first April event marked the official beginning three winning consortia are: T-Systems, deliverables are expected by the end of the (Above) Participants at the CAS event, which of the prototype phase, which covers the Huawei, Cyfronet and Divia; IBM; and year, after which two consortia will proceed was devoted to beam injection, extraction Magnetic precision has a name www.metrolab.com procurement of R&D services for the RHEA Group, T-Systems, Exoscale and to the pilot phase in 2018. and transfer.

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CCJun17_Faces&Places.indd 46 10/05/2017 17:28 CCJun17_Faces&Places.indd 47 10/05/2017 16:15 CERNCOURIER www. V o l u m e 5 7 N u m b e r 5 J u n e 2 0 1 7 CERN Courier June 2017 CERN Courier June 2017 Faces & Places Faces & Places Prizes galore for IceCube members Image credits: (clockwise from top left) S Yoshida; NBI; DESY; University of Texas at Arlington at Texas of University DESY; NBI; S Yoshida; left) top from (clockwise credits: Image Four members of the IceCube neutrino observatory, based at the South Pole, have independently won awards recognising their contributions to the field. Aya Ishihara of Chiba University in Japan was awarded the 37th annual Saruhashi Prize, given each year to a female scientist under the age of 50 for exceptional research accomplishments. This C o n f e r e n C e s year’s prize, presented in Tokyo on 27 May, cites Ishihara’s contributions to high-energy Beam gymnastics astronomy with the IceCube detector. PT2026 NMR Precision Teslameter Fellow IceCube collaborator Subir Sarkar of the University of Oxford, UK, and the Niels in Sicily Bohr Institute in Denmark has won the 4th Reach new heights Homi Bhabha prize. Awarded since 2010 by The CERN Accelerator School (CAS) the Tata Institute of Fundamental Research organised a specialised course devoted (TIFR) in India and the International Union to beam injection, extraction and transfer in magnetic eld of Pure and Applied Physics, the prize in Erice, Sicily, from 10 to 19 March. The recognises an active scientist who has made course was held in the Ettore Majorana measurement distinguished contributions in the field of Foundation and Centre, and was attended by high-energy cosmic-ray and astroparticle 72 participants from 25 countries including physics over an extended academic career. China, Iran, Russia and the US. The Metrolab PT2026 sets a new Sarkar has also worked on the Pierre The intensive programme comprised standard for precision magnetometers. Auger Observatory and is a member of the 32 lectures and two seminars, with 10 hours Leveraging 30 years of expertise building Cherenkov Telescope Array collaboration. of case studies allowing students to apply Meanwhile, former IceCube spokesperson (Clockwise from top left) Aya Ishihara, Subir Sarkar, Christian Spiering and Ben Jones. their knowledge to real problems. Following the world’s gold standard magnetometers, Christian Spiering from DESY has won the introductory talks on electromagnetism, it takes magnetic  eld measurement to O’Ceallaigh Medal for astroparticle physics, outstanding contributions to cosmic-ray Finally, IceCube member Ben Jones of the relativity and the basics of beam dynamics, new heights: measuring higher elds with awarded every second year by the Dublin physics and to the newly emerging field of University of Texas at Arlington has won the different injection and extraction schemes Institute for Advanced Studies. Spiering, neutrino astronomy in particular”. Both he APS 2017 Mitsuyoshi Tanaka Dissertation were presented. Detailed lectures about the better resolution. who led the collaboration from 2005 to 2007 and Sarkar will receive their awards at the Award in Experimental Particle Physics, special magnetic and electrostatic elements and also played a key role in the Lake Baikal 35th International Cosmic Ray Conference in for his thesis “Sterile Neutrinos in Cold for the case of lepton and hadron beams The PT2026 offers unprecedented  exibility Neutrino Telescope, was honoured “for his Busan, South Korea, on 13 July. Climates”. followed. State-of-the-art kicker and septa designs were discussed, as were issues in the choice of parameters, interfacing A Purcell related to stripping-injection and resonant and probe placement, as well as greatly Firms to begin extraction as used in medical settings. improved tolerance of inhomogeneous An overview of optics measurements in prototyping the storage rings and non-periodic structures elds. And with Ethernet & USB interfaces completed the programme, with talks about and LabVIEW software, it  ts perfectly into science cloud the production of secondary and radioactive modern laboratory environments. beams and exotic injection methods.

The next CAS course, focusing on le - Photo: Scott Maxwell, Master www.agence-arca.com advanced accelerator physics, will take An awards ceremony took place at CERN place at Royal Holloway University in the on 3 April recognising companies that UK from 3–15 September. Later in the year, have won contracts to start building the CAS is participating in a joint venture in prototype phase of the Helix Nebula collaboration with the accelerator schools Science Cloud (HNSciCloud). Initiated of the US, Japan and Russia. This school by CERN in 2016, HNSciCloud is a is devoted to RF technologies and will be €5.3 million pre-commercial procurement held in Japan from 16–26 October. Looking tender driven by 10 leading research Award winners and participants at the ceremony, which marks the official beginning of further ahead, schools are currently planned organisations and funded by the European the prototype phase of the pre-commercial procurement process for the Helix Nebula in 2018 on accelerator physics at the Commission. Its aim is to establish a Science Cloud. introductory level, on future colliders and on

European cloud platform to support beam instrumentation and diagnostics. See Pantone 286 Pantone 032 high-performance computing and big-data design, prototype development and pilot SixSq. Each presented its plans to build https://www.cern.ch/schools/CAS. capabilities for scientific research. The use of innovative cloud services. The the HNSciCloud prototype and the first April event marked the official beginning three winning consortia are: T-Systems, deliverables are expected by the end of the (Above) Participants at the CAS event, which of the prototype phase, which covers the Huawei, Cyfronet and Divia; IBM; and year, after which two consortia will proceed was devoted to beam injection, extraction Magnetic precision has a name www.metrolab.com procurement of R&D services for the RHEA Group, T-Systems, Exoscale and to the pilot phase in 2018. and transfer.

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CCJun17_Faces&Places.indd 46 10/05/2017 17:28 CCJun17_Faces&Places.indd 47 10/05/2017 16:15 CERNCOURIER www. V o l u m e 5 7 N u m b e r 5 J u n e 2 0 1 7 CERN Courier June 2017 CERN Courier June 2017 Faces & Places Faces & Places

V i s i t s Testing gravity in Vancouver S Bennett/CERN L MottetL A Frolov/SFU Around 100 participants from 15 countries regarding attempting to measure the attended the 2017 Testing Gravity Conference gravitational force on antihydrogen with at the Simon Fraser University, Harbour three experiments at CERN’s Antiproton Centre, in Vancouver, Canada, on 25 to Decelerator (CERN Courier January/ 28 January. The conference, the second such February 2017 p39). meeting following the success of the 2015 Among other highlights there were event, brought together experts exploring new fascinating talks from pioneers in their ways to test general relativity (GR). fields, including cosmologist Misao Sasaki, GR, and its Newtonian limit, work very one of the fathers of inflationary theory; Eric well in most circumstances. But gaps in our Adelberger, a leader in gravity tests at short understanding appear when the theory is distances; and Frans Pretorius, who created applied to extremely small distances, where the first successful computer simulations of On 12 April, CERN hosted the seven-member high-level group of scientific quantum mechanics reigns, or extremely Testing Gravity is a new conference series black-hole collisions. advisers to the European Commission, which provides independent scientific large distances, when we try to describe the held every two years. This is an exciting time for the field advice on specific policy issues. Led by former CERN Director-General Rolf universe. Advancing technologies across all of gravity research. The LIGO–Virgo Heuer, the group toured ATLAS and the AMS Payload Operations Control areas of physics open up opportunities for of dark matter and dark energy. Among collaboration is expected to detect many more Centre. testing gravity in new ways, thus helping to the actively discussed topics were the gravitational-wave events from binary black On 18 April, Czech minister of health Miloslav Ludvik visited CERN, fill these gaps. breakthrough discovery in February holes and neutron stars. Meanwhile, a new during which he toured the ALICE experiment and signed the guestbook The conference brought together 2016 of gravitational waves by the LIGO generation of cosmological probes currently with head of Member State relations Pippa Wells. renowned cosmologists, astrophysicists, observatory, which has opened up exciting under development, such as Euclid, LSST and

and atomic, nuclear and particle physicists opportunities for testing GR in detail (CERN SKA, are stimulating theoretical research in S Bennett/CERN to share their specific approaches to test GR Courier January/February 2017 p34), and their respective domains (CERN Courier May Bennett/CERNS and to explore ways to address long-standing the growing interest in gravity tests among 2017 p19). We are already looking forward to mysteries, such as the unexplained nature the CERN physics community – specifically the next Testing Gravity in Vancouver in 2019.

Minister for higher education and science in Denmark Søren Pind Dr Viktoras Pranckietis MP and speaker of the Seimas, Republic of visited CERN on 25 April, touring the synchrocyclotron, the Antiproton Lithuania, visited CERN on 26 April, taking in CMS, ISOLDE and MEDICIS. Decelerator, ALICE and ATLAS. Here he is pictured (centre) meeting ATLAS He signed the guestbook with senior adviser for Lithuania Tadeusz Kurtyka spokesperson Karl Jakobs. (left) and director for finance and human resources Martin Steinacher.

L e t t e r s

Two loops in context two-loop predictions also for electron– there has been constant progress in computer The article “The two-loop explosion” positron collisions and, in some cases, algebra as the key technology in multi-loop (CERN Courier April 2017 p18) pushing as far as the five-loop level. calculations. The computational challenge to summarises the current status of precision This progress is based on a number of set up and solve large systems of equations, theory predictions for scattering processes developments. Factorisation of physics even of terabyte size, can be overcome with at the LHC, driven by the impressive from different length scales has been used symbolic manipulation systems such as performance of the LHC experiments. systematically to establish effective theories FORM. It is only during recent years that While this is a new situation at CERN, it is in the soft and collinear limits, helping to suitable open-source software and relatively not without precedent at a hadron collider. organise the sometimes tedious process of inexpensive hardware have become widely Magnets and coils In fact, it had already been apparent in the cancelling infrared divergences in physical available. High quality magnets and coils, designed and manufactured by Swedish engineering in late 1990s at the electron–proton collider cross-sections. Deeper insight into the Thus, continuous efforts and investments order to provide the best solutions for all your needs! We take pride in close collaborations HERA, then operated at DESY, that two- analytical structure of scattering amplitudes in theory research during the past decades are with the customer, whether it is for research or industry. and even three-loop computations in QCD and new research in mathematics on iterated bearing fruit, allowing theory predictions in were needed to match the high accuracy of integrals, hyper-logarithms and periods 2017 to indeed match the precision required  SCANDITRONIX-MAGNET.SE the data. Since then the theory community have also revealed the algebraic structure by many LHC measurements. has made steady advances by achieving encoded in Feynman diagrams. Finally, ● Sven-Olaf Moch, University of Hamburg.

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CCJun17_Faces&Places.indd 48 10/05/2017 16:15 CCJun17_Faces&Places.indd 49 16/05/2017 11:45 CERNCOURIER www. V o l u m e 5 7 N u m b e r 5 J u n e 2 0 1 7 CERN Courier June 2017 CERN Courier June 2017 Faces & Places Faces & Places

V i s i t s Testing gravity in Vancouver S Bennett/CERN L MottetL A Frolov/SFU Around 100 participants from 15 countries regarding attempting to measure the attended the 2017 Testing Gravity Conference gravitational force on antihydrogen with at the Simon Fraser University, Harbour three experiments at CERN’s Antiproton Centre, in Vancouver, Canada, on 25 to Decelerator (CERN Courier January/ 28 January. The conference, the second such February 2017 p39). meeting following the success of the 2015 Among other highlights there were event, brought together experts exploring new fascinating talks from pioneers in their ways to test general relativity (GR). fields, including cosmologist Misao Sasaki, GR, and its Newtonian limit, work very one of the fathers of inflationary theory; Eric well in most circumstances. But gaps in our Adelberger, a leader in gravity tests at short understanding appear when the theory is distances; and Frans Pretorius, who created applied to extremely small distances, where the first successful computer simulations of On 12 April, CERN hosted the seven-member high-level group of scientific quantum mechanics reigns, or extremely Testing Gravity is a new conference series black-hole collisions. advisers to the European Commission, which provides independent scientific large distances, when we try to describe the held every two years. This is an exciting time for the field advice on specific policy issues. Led by former CERN Director-General Rolf universe. Advancing technologies across all of gravity research. The LIGO–Virgo Heuer, the group toured ATLAS and the AMS Payload Operations Control areas of physics open up opportunities for of dark matter and dark energy. Among collaboration is expected to detect many more Centre. testing gravity in new ways, thus helping to the actively discussed topics were the gravitational-wave events from binary black On 18 April, Czech minister of health Miloslav Ludvik visited CERN, fill these gaps. breakthrough discovery in February holes and neutron stars. Meanwhile, a new during which he toured the ALICE experiment and signed the guestbook The conference brought together 2016 of gravitational waves by the LIGO generation of cosmological probes currently with head of Member State relations Pippa Wells. renowned cosmologists, astrophysicists, observatory, which has opened up exciting under development, such as Euclid, LSST and

and atomic, nuclear and particle physicists opportunities for testing GR in detail (CERN SKA, are stimulating theoretical research in S Bennett/CERN to share their specific approaches to test GR Courier January/February 2017 p34), and their respective domains (CERN Courier May Bennett/CERNS and to explore ways to address long-standing the growing interest in gravity tests among 2017 p19). We are already looking forward to mysteries, such as the unexplained nature the CERN physics community – specifically the next Testing Gravity in Vancouver in 2019.

Minister for higher education and science in Denmark Søren Pind Dr Viktoras Pranckietis MP and speaker of the Seimas, Republic of visited CERN on 25 April, touring the synchrocyclotron, the Antiproton Lithuania, visited CERN on 26 April, taking in CMS, ISOLDE and MEDICIS. Decelerator, ALICE and ATLAS. Here he is pictured (centre) meeting ATLAS He signed the guestbook with senior adviser for Lithuania Tadeusz Kurtyka spokesperson Karl Jakobs. (left) and director for finance and human resources Martin Steinacher.

L e t t e r s

Two loops in context two-loop predictions also for electron– there has been constant progress in computer The article “The two-loop explosion” positron collisions and, in some cases, algebra as the key technology in multi-loop (CERN Courier April 2017 p18) pushing as far as the five-loop level. calculations. The computational challenge to summarises the current status of precision This progress is based on a number of set up and solve large systems of equations, theory predictions for scattering processes developments. Factorisation of physics even of terabyte size, can be overcome with at the LHC, driven by the impressive from different length scales has been used symbolic manipulation systems such as performance of the LHC experiments. systematically to establish effective theories FORM. It is only during recent years that While this is a new situation at CERN, it is in the soft and collinear limits, helping to suitable open-source software and relatively not without precedent at a hadron collider. organise the sometimes tedious process of inexpensive hardware have become widely Magnets and coils In fact, it had already been apparent in the cancelling infrared divergences in physical available. High quality magnets and coils, designed and manufactured by Swedish engineering in late 1990s at the electron–proton collider cross-sections. Deeper insight into the Thus, continuous efforts and investments order to provide the best solutions for all your needs! We take pride in close collaborations HERA, then operated at DESY, that two- analytical structure of scattering amplitudes in theory research during the past decades are with the customer, whether it is for research or industry. and even three-loop computations in QCD and new research in mathematics on iterated bearing fruit, allowing theory predictions in were needed to match the high accuracy of integrals, hyper-logarithms and periods 2017 to indeed match the precision required  SCANDITRONIX-MAGNET.SE the data. Since then the theory community have also revealed the algebraic structure by many LHC measurements. has made steady advances by achieving encoded in Feynman diagrams. Finally, ● Sven-Olaf Moch, University of Hamburg.

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CCJun17_Faces&Places.indd 48 10/05/2017 16:15 CCJun17_Faces&Places.indd 49 16/05/2017 11:45 CERNCOURIER www. V o l u m e 5 7 N u m b e r 5 J u n e 2 0 1 7 CERN Courier June 2017 CERN Courier June 2017 Ultra High Performance Faces & Places Faces & Places Silicon Drift Detector

® O b i t u a r i e s Committee in the early 1960s and a member reported and discussed by him at many FAST SDD of the Scientific Policy Committee from 1969 conferences, Ekspong showed that the to 1975. He was Swedish delegate to CERN distributions instead followed a negative Count Rate = >1,000,000 CPS Pierre Binétruy 1955–2017 Council for many years and was a catalyst binomial distribution. for the development of Swedish particle In the early studies of physics possibilities The True State-of-the-Art physics. He was elected to the Royal Swedish at the planned LEP collider, Ekspong also One of the most brilliant theorists of his time, Binétruy was also an inspiration to Academy of Sciences in 1969 and was a made a convincing contribution to the search • New in-house manufacturing Pierre Binétruy, passed away on 1 April. hundreds of students. Through the MOOC member of its Nobel Committee for physics strategy for observing the Higgs boson by Binétruy received his doctorate on gauge Gravity project, which he developed in from 1975 to 1988, chairing the committee carefully examining the experimental mass • Lower noise theories in 1980 under the direction of collaboration with George Smoot, his from 1987 to 1988. resolution. This strategy was later employed • Lower leakage current Mary K Gaillard, and held several positions courses reached tens of thousands of His deep knowledge of statistics allowed by the LEP experiments to exclude the Higgs • Better charge collection including a CERN fellowship and postdocs students. He viewed MOOC not just as Ekspong to clarify general features of mass up to about 115 GeV. He also took part in the US. In 1986, he was recruited as a a simple way to improve the visibility of high-energy interactions. Data from in the technical development of one of the researcher at LAPP in Annecy-le-Vieux and, the university, but as a revolution in the CERN’s Proton Synchrotron and bubble LEP experiments, DELPHI. 25 mm2 FAST SDD® 55Fe Spectrum 25 mm2 FAST SDD® four years later, he moved to the University way knowledge is diffused. In parallel chambers had suggested that the multiplicity Gösta Ekspong inspired many with his 800,000 230K, Tpk = 8 µs 1,000,000 of Paris XI. Since 2003 he was a professor at with these activities, Binétruy found distributions of charged particles obeyed lectures, discussions, and stories about Peak to 1 keV background Mn Kα 26,000:1 100,000 Paris Diderot University. He helped to found time to be president of the Fundamental so-called “KNO” scaling, but this Nobel-prize discoveries. In many articles Mn Kβ 600,000 the Astroparticle and Cosmology Laboratory Physics Advisory Group (2008–2010) relationship was found not to be valid in later in Swedish he made physics available and 10,000 (APC) in 2005 and was its director until and the Fundamental Physics Roadmap collider data recorded at higher energies understandable for the general public. COUNTS 1,000 2013. We also owe to him the involvement of Binétruy’s research interests included Committee (2009–2010) of ESA; the French with the UA5 experiment. In a discovery ● Per Carlson and Sven-Olof Holmgren. 400,000 122 eV FWHM the APC in space sciences, Earth sciences, , cosmology and gravitation. consortium of the LISA space mission; 100 and the realisation of the importance of the theory division of the French Physical 200,000 data science. but also to have the courage to prepare the Society (1995–2003); and the theory section 10

0 1 Binétruy’s research interests evolved community for the scientific goals that of CNRS (2005–2008). He was also a Gareth Hughes 1943–2017 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 from high-energy physics (notably this truth demands and to fight to defend member of the IN2P3 Scientific Committee Energy (keV) supersymmetry) to cosmology and them. Older members of IN2P3 remember (1996–2000) and numerous other panels. Resolution vs Peaking Time 180 gravitation, and in particular the intersection the extraordinary intellectual atmosphere Alongside his scientific activities, which Gareth Hughes joined the high-energy 25 mm2 between the primordial universe and that animated the Supersymmetry he pursued with enthusiasm and unfailing physics group at Lancaster University in 170 fundamental theories. His recent interests Research Group, which he proposed and rigor, Binétruy had a deep appreciation 1970, following his undergraduate and Standard SDD included inflation models, dark energy directed from 1997 to 2004, transforming and knowledge of broader culture. He had postgraduate studies at Oxford University. 160 and gravitational-wave cosmological it into an unprecedented crossroads for a profound knowledge of the arts, where He was born in Wales and was a proud ® 150 FAST SDD backgrounds. During his prolific career, he experimenters and theorists. By that time, he was the driving force behind several supporter of the Welsh Rugby Union team, published seminal papers that approached when the detection of gravitational waves interactions between art and science. As although he had never played the game. 140 on e FM e FM one

1000 citations each and received several was for many a distant dream, he also had one of his eminent colleagues said of him: He used to say that he was among the few ti 130

awards, including the Thibaud Prize and the the intuition to involve France in the field of “Pierre was one of those very exceptional Welshmen who never played rugby, who Resolution (eV FWHM @ 5.9 keV) esolu Paul Langevin Award. gravitational-wave detection via the LISA people who was at the top of the game and, could not sing and who did not like leeks. 120 0 1 2 3 4 5 But he will also be remembered for his Pathfinder programme – a scientific choice to at the same time, a remarkably pleasant Ironically, he died on the feast day of Peaking Time (μs) Peaing ime µs spirit and courage. He knew that it was which he devoted great dynamism right up to colleague.” St David, the patron saint of Wales. necessary not only to seek scientific truth his death. ● Stavros Katsanevas. Following his appointment in Lancaster, Gareth played a central role in the work Gareth Hughes was a member of the Options: of the Manchester–Lancaster experiment ALEPH and ATLAS collaborations. • 25 mm2 active area collimated to 17 mm2 (dubbed “Mancaster”) at Daresbury • 70 mm2 collimated to 50 mm2 Gösta Ekspong 1922–2017 Laboratory to study the electro-production He was an excellent teacher, his gentle • Windows: Be (0.5 mil) 12.5 µm, or of nucleon resonances (by which the sense of humour and infinite patience C Series (Si3N4) components of the nucleon are converted making him a much sought after member Our mentor, colleague and close friend Ekspong once served as Sweden’s delegate to more highly energetic states). He of staff by both undergraduate and • TO-8 package fits all Amptek configurations Gösta Ekspong passed away peacefully to CERN Council. subsequently went on to work on the JADE postgraduate students. He eventually • Vacuum applications on 24 February at the age of 95. His experiment at DESY, the ALEPH and then became director of undergraduate courses life as a particle physicist covered the he was involved in the discovery of the ATLAS experiments at CERN – all of which within the physics department at Lancaster. nuclear-emulsion epoch, the bubble-chamber antiproton at the Bevatron. Scanning have been key in establishing the Standard Gareth’s quick grasp of a situation and years, experiments at CERN’s Large emulsions one evening, he found the first Model of particle physics. clear insight made him an extremely Electron–Positron (LEP) and Super Proton evidence for an annihilation interaction in an Gareth’s main strength was computing. valuable colleague with whom to discuss Synchrotron colliders. In his retirement he emulsion, and on the 50th anniversary of the In the 1990s, as well as being a member of problems. He was widely known and, in closely followed the results from the LHC, in discovery of the antiproton he was invited to the CERN Central Computing Committee, turn, seemed to know everyone. This proved particular the search for the Higgs boson. Berkeley to talk about the discovery. he was chairman of the committee that to be a great help on numerous occasions. In 1950 Ekspong was working with Ekspong was appointed to the first chair produced the policy on computing for UK He retired from the physics department in Cecil Powell’s group in Bristol, UK, which in particle physics in Sweden, at Stockholm particle physics. This was a very rapidly 2007 but continued his involvement with had become a world-leading centre for possible to determine the mass of the π0 and University, in 1960. There he founded a changing field at the time but a subject in the ATLAS experiment as an emeritus staff 40 Years of cosmic-ray emulsion work. In a brilliant set an upper limit for its lifetime. large particle-physics group that over the which Gareth’s insight and guidance was to member until his death following a short Products for Your Imagination experiment with Hooper and King he Ekspong obtained his doctorate at years made important contributions to many prove invaluable. He was also a prominent illness. He will be sorely missed by us all but identified the decayπ 0 → γγ. By observing Uppsala University, Sweden, in 1955, and experiments with data mostly from CERN. He member of the Particle Physics Grants especially by his wife Jane, daughter Siân ® AMPTEK Inc. + – e e pairs from the conversion of the photons immediately took up a postdoc position in strongly supported the use of CERN, where Committee and other bodies that manage and son Owain, and his four grandchildren. [email protected] ● close to cosmic-ray interactions, it was Emilio Segré’s group at Berkeley where he was a member and chair of the Emulsion funding for UK particle physics. His friends and colleagues. www.amptek.com

50

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® O b i t u a r i e s Committee in the early 1960s and a member reported and discussed by him at many FAST SDD of the Scientific Policy Committee from 1969 conferences, Ekspong showed that the to 1975. He was Swedish delegate to CERN distributions instead followed a negative Count Rate = >1,000,000 CPS Pierre Binétruy 1955–2017 Council for many years and was a catalyst binomial distribution. for the development of Swedish particle In the early studies of physics possibilities The True State-of-the-Art physics. He was elected to the Royal Swedish at the planned LEP collider, Ekspong also One of the most brilliant theorists of his time, Binétruy was also an inspiration to Academy of Sciences in 1969 and was a made a convincing contribution to the search • New in-house manufacturing Pierre Binétruy, passed away on 1 April. hundreds of students. Through the MOOC member of its Nobel Committee for physics strategy for observing the Higgs boson by Binétruy received his doctorate on gauge Gravity project, which he developed in from 1975 to 1988, chairing the committee carefully examining the experimental mass • Lower noise theories in 1980 under the direction of collaboration with George Smoot, his from 1987 to 1988. resolution. This strategy was later employed • Lower leakage current Mary K Gaillard, and held several positions courses reached tens of thousands of His deep knowledge of statistics allowed by the LEP experiments to exclude the Higgs • Better charge collection including a CERN fellowship and postdocs students. He viewed MOOC not just as Ekspong to clarify general features of mass up to about 115 GeV. He also took part in the US. In 1986, he was recruited as a a simple way to improve the visibility of high-energy interactions. Data from in the technical development of one of the researcher at LAPP in Annecy-le-Vieux and, the university, but as a revolution in the CERN’s Proton Synchrotron and bubble LEP experiments, DELPHI. 25 mm2 FAST SDD® 55Fe Spectrum 25 mm2 FAST SDD® four years later, he moved to the University way knowledge is diffused. In parallel chambers had suggested that the multiplicity Gösta Ekspong inspired many with his 800,000 230K, Tpk = 8 µs 1,000,000 of Paris XI. Since 2003 he was a professor at with these activities, Binétruy found distributions of charged particles obeyed lectures, discussions, and stories about Peak to 1 keV background Mn Kα 26,000:1 100,000 Paris Diderot University. He helped to found time to be president of the Fundamental so-called “KNO” scaling, but this Nobel-prize discoveries. In many articles Mn Kβ 600,000 the Astroparticle and Cosmology Laboratory Physics Advisory Group (2008–2010) relationship was found not to be valid in later in Swedish he made physics available and 10,000 (APC) in 2005 and was its director until and the Fundamental Physics Roadmap collider data recorded at higher energies understandable for the general public. COUNTS 1,000 2013. We also owe to him the involvement of Binétruy’s research interests included Committee (2009–2010) of ESA; the French with the UA5 experiment. In a discovery ● Per Carlson and Sven-Olof Holmgren. 400,000 122 eV FWHM the APC in space sciences, Earth sciences, supersymmetry, cosmology and gravitation. consortium of the LISA space mission; 100 and the realisation of the importance of the theory division of the French Physical 200,000 data science. but also to have the courage to prepare the Society (1995–2003); and the theory section 10

0 1 Binétruy’s research interests evolved community for the scientific goals that of CNRS (2005–2008). He was also a Gareth Hughes 1943–2017 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 from high-energy physics (notably this truth demands and to fight to defend member of the IN2P3 Scientific Committee Energy (keV) supersymmetry) to cosmology and them. Older members of IN2P3 remember (1996–2000) and numerous other panels. Resolution vs Peaking Time 180 gravitation, and in particular the intersection the extraordinary intellectual atmosphere Alongside his scientific activities, which Gareth Hughes joined the high-energy 25 mm2 between the primordial universe and that animated the Supersymmetry he pursued with enthusiasm and unfailing physics group at Lancaster University in 170 fundamental theories. His recent interests Research Group, which he proposed and rigor, Binétruy had a deep appreciation 1970, following his undergraduate and Standard SDD included inflation models, dark energy directed from 1997 to 2004, transforming and knowledge of broader culture. He had postgraduate studies at Oxford University. 160 and gravitational-wave cosmological it into an unprecedented crossroads for a profound knowledge of the arts, where He was born in Wales and was a proud ® 150 FAST SDD backgrounds. During his prolific career, he experimenters and theorists. By that time, he was the driving force behind several supporter of the Welsh Rugby Union team, published seminal papers that approached when the detection of gravitational waves interactions between art and science. As although he had never played the game. 140 on e FM e FM one

1000 citations each and received several was for many a distant dream, he also had one of his eminent colleagues said of him: He used to say that he was among the few ti 130

awards, including the Thibaud Prize and the the intuition to involve France in the field of “Pierre was one of those very exceptional Welshmen who never played rugby, who Resolution (eV FWHM @ 5.9 keV) esolu Paul Langevin Award. gravitational-wave detection via the LISA people who was at the top of the game and, could not sing and who did not like leeks. 120 0 1 2 3 4 5 But he will also be remembered for his Pathfinder programme – a scientific choice to at the same time, a remarkably pleasant Ironically, he died on the feast day of Peaking Time (μs) Peaing ime µs spirit and courage. He knew that it was which he devoted great dynamism right up to colleague.” St David, the patron saint of Wales. necessary not only to seek scientific truth his death. ● Stavros Katsanevas. Following his appointment in Lancaster, Gareth played a central role in the work Gareth Hughes was a member of the Options: of the Manchester–Lancaster experiment ALEPH and ATLAS collaborations. • 25 mm2 active area collimated to 17 mm2 (dubbed “Mancaster”) at Daresbury • 70 mm2 collimated to 50 mm2 Gösta Ekspong 1922–2017 Laboratory to study the electro-production He was an excellent teacher, his gentle • Windows: Be (0.5 mil) 12.5 µm, or of nucleon resonances (by which the sense of humour and infinite patience C Series (Si3N4) components of the nucleon are converted making him a much sought after member Our mentor, colleague and close friend Ekspong once served as Sweden’s delegate to more highly energetic states). He of staff by both undergraduate and • TO-8 package fits all Amptek configurations Gösta Ekspong passed away peacefully to CERN Council. subsequently went on to work on the JADE postgraduate students. He eventually • Vacuum applications on 24 February at the age of 95. His experiment at DESY, the ALEPH and then became director of undergraduate courses life as a particle physicist covered the he was involved in the discovery of the ATLAS experiments at CERN – all of which within the physics department at Lancaster. nuclear-emulsion epoch, the bubble-chamber antiproton at the Bevatron. Scanning have been key in establishing the Standard Gareth’s quick grasp of a situation and years, experiments at CERN’s Large emulsions one evening, he found the first Model of particle physics. clear insight made him an extremely Electron–Positron (LEP) and Super Proton evidence for an annihilation interaction in an Gareth’s main strength was computing. valuable colleague with whom to discuss Synchrotron colliders. In his retirement he emulsion, and on the 50th anniversary of the In the 1990s, as well as being a member of problems. He was widely known and, in closely followed the results from the LHC, in discovery of the antiproton he was invited to the CERN Central Computing Committee, turn, seemed to know everyone. This proved particular the search for the Higgs boson. Berkeley to talk about the discovery. he was chairman of the committee that to be a great help on numerous occasions. In 1950 Ekspong was working with Ekspong was appointed to the first chair produced the policy on computing for UK He retired from the physics department in Cecil Powell’s group in Bristol, UK, which in particle physics in Sweden, at Stockholm particle physics. This was a very rapidly 2007 but continued his involvement with had become a world-leading centre for possible to determine the mass of the π0 and University, in 1960. There he founded a changing field at the time but a subject in the ATLAS experiment as an emeritus staff 40 Years of cosmic-ray emulsion work. In a brilliant set an upper limit for its lifetime. large particle-physics group that over the which Gareth’s insight and guidance was to member until his death following a short Products for Your Imagination experiment with Hooper and King he Ekspong obtained his doctorate at years made important contributions to many prove invaluable. He was also a prominent illness. He will be sorely missed by us all but identified the decayπ 0 → γγ. By observing Uppsala University, Sweden, in 1955, and experiments with data mostly from CERN. He member of the Particle Physics Grants especially by his wife Jane, daughter Siân ® AMPTEK Inc. + – e e pairs from the conversion of the photons immediately took up a postdoc position in strongly supported the use of CERN, where Committee and other bodies that manage and son Owain, and his four grandchildren. [email protected] ● close to cosmic-ray interactions, it was Emilio Segré’s group at Berkeley where he was a member and chair of the Emulsion funding for UK particle physics. His friends and colleagues. www.amptek.com

50

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programme. Art’s efforts extended beyond California Energy Commission under two pragmatism the physics community values the laboratory. He was a founder of the state administrations. could be put to use on practical problems Thomas Massam 1936–2016 American Council for an Energy-Efficient Among the numerous honours Art facing humanity. The result of his dedication Economy, a non-profit organisation that received was the National Medal of Science was profound and lasting contributions to continues today to push for policies that and of Technology and Innovation presented energy efficiency. Despite Art’s ever growing Thomas Massam received his undergraduate in experiments that established evidence increase energy efficiency. Art served in the by president Barack Obama in 2011 for fame, he remained an unassuming colleague, degree in physics in 1956 at the Chadwick for the Standard Model during the 1960s Clinton administration from 1994 to 1999 as “extraordinary leadership in the development and we remember him as a friend whose Laboratory, Cambridge, and his PhD at CifarelliL and afterwards. He helped to set up the first CERNsenior adviser to the DOE’s assistantCOURIER secretary of energy-efficient building technologies and achievements transcended the scope of our the University of Liverpool in 1960. Jovial large-scale non-bubble-chamber facility at for energy efficiency and renewable energy, related standards and policies”. ordinary research endeavours. but very serious and tireless at work, Tom CERN, and was a close collaborator in our and subsequently as commissioner at the Art showed that the analytical skills and ● Robert N Cahn. devoted his life to experimental-physics adoption of electromagnetic calorimeters as a research and to his family. tool to separate leptons from hadrons to allow I had the privilege of meeting Tom at searches for new particle states. Together, the Fermi Summer School of Physics in we started the first heavy-lepton search and Durga Prasad Roy 1941–2017 Varenna, Italy, in 1962. The topics discussed developed a new technology to measure the at the school were the results of the Blackett time-of-flight of particles with a very high group on the unexpected V particles, later precision, leading to the first experimental Durga Prasad Roy, or DP as he was popularly Mikheyev–Smiron–Wolfenstein (MSW) TIFR called “strange” by Gell-Mann, and the observation of anti-deuteron production. known, passed away on 17 March in Cuttack, The destinationsolution to the solar-neutrino for high-energy problem. effects of “virtual physics” in properties Tom Massam helped to set up the first Tom, research director in the INFN India, after a brief illness. He was active This was tested by two impressive sets of of the elementary particles and the large-scale non-bubble-chamber facility unit of Bologna, was also giving regular until his last days, having posted a review physicsneutrino-spectrum news and results jobs published by the experimental-plus-theoretical research at CERN. physics courses to the students at the ISSP on the arXiv preprint server in August KamLAND experiment in 2003 and 2004. needed. Tom was the most active student of International School of Subnuclear Physics 2016, participated in conferences in 2017 Incorporating these data further in their the school, and soon afterwards he joined my is also one of the founders of the Ettore in Erice, established in 1963. and having given a series of lectures on analysis, and focussing on the LMA–MSW group at Bologna University and remained Majorana International Centre for Scientific Tom is no longer with us. On 1 December the Standard Model at the University of cerncourier.comsolution in the two-neutrino framework, there until his retirement in 2002. Together Culture, established at CERN in the early 2016 he left his beloved family, Veronica Hyderabad just a few days before he fell ill. DP and collaborators ruled out the high- we performed experiments in all of the 1960s with its headquarters in Erice, Sicily. with three children Peter, Steven, Paul, DP completed his PhD in particle physics mass-squared-difference LMA solution important laboratories in Europe, including In 1972, Tom initiated an International and his friends and colleagues with the in 1966 at the Tata Institute of Fundamental by more than three standard deviations

CERN, DESY, ADONE and Gran Sasso. School of Theory Application of Computers. unforgettable memory of his extraordinary Research (TIFR), Mumbai, and was a and converged on the low-mass-squared collaboration CMS the of benefit the for CERN, 2011 © Tom had an extraordinary intelligence, Tom played a major role, contributing life. postdoctoral fellow at the University of difference LMA as the unique solution. work capacity and “scientific fidelity”. He with his extraordinary experimental talents, ● Antonino Zichichi. California (1966–1968), CERN (1968–1969) His scientific achievements were and the University of Toronto (1969–1970). DP made pioneering contributions in recognised by the Meghnad Saha Award and He moved to the Rutherford Laboratory in particle and astroparticle physics. the SN Bose Medal. He was elected fellow the UK (1970–1974), and was a reader at of the Indian Academy of Sciences, Indian Arthur Rosenfeld 1926–2017 Visva Bharati University, India, from 1974 a signature of the top quark, a methodology National Science Academy and National to 1976. He joined TIFR in 1976 and retiredCERN widely adoptedCOURIER at the CERN and Tevatron Academy of Sciences. 30 years later in 2006. He then became a proton–antiproton colliders. Along with his colleague Probir Roy, DP Arthur H Rosenfeld, a long-time member of Particle Data Group. Today’s Particle Data member of the Homi Bhabha Centre of He also worked extensively on many started a series of workshops in high-energy the faculty at the University of California, LBNL Group and the Review of Particle Physics Science Education. Thepopular destination theories of forphysics high-energy beyond the physics phenomenology called WHEPP that Berkeley, and distinguished senior scientist at are, 60 years later, Art’s legacy to the physics Scientifically, DP had an instinct for Standardphysics Model, news such andas supersymmetry. jobs He still initiate a lot of collaborative work today. the Lawrence Berkeley National Laboratory, community. recognising what is important. He made suggested a promising signature with which He was passionate about undergraduate passed away in Berkeley on 27 January at Much greater still is Art’s legacy to the US pioneering contributions in particle- and to search for charged Higgs bosons using teaching, but also had many interests the age of 90. A student of Enrico Fermi, he and international communities, which benefit astroparticle-physics phenomenology. taucerncourier.com decays and the distinctive polarisation outside science. He was a weightlifting

was a leading participant in the revolutionary today from his relentless pursuit of increased © 2011His CERN, early for the benefit researchof the CMS collaboration work was in the area of these particles, which is currently being champion of Orissa, an expert swimmer, advances in particle physics in the 1950s and efficiency in the use of energy through of “Regge phenomenology and duality”, used in the ongoing search for charged and a connoisseur of Indian classical music 1960s before striking out in a new direction, both technological advances and political which addresses the dominant part of Higgs boson at the LHC. Likewise, the and dance. His passion for adventure where he became legendary. A fitting tribute advocacy. The oil embargo of 1973 led Art cross-sections for hadron–hadron collision missing transverse-momentum signature for always showed up in the after-work evening to Art was the award in 2006 of the Enrico to wonder why he saw so many obviously processes. Using these ideas, DP predicted supersymmetric particles suggested by DP activities at WHEPP workshops. He also Fermi Award of the US Department of Energy wasteful practices in the use of energy. He exotic mesons called baryonium (now is being widely used in the ongoing collider had strong views on the lack of experimental “for a lifetime of achievements ranging devoted the rest of his career to rectifying this. termed tetraquarks) as well asCERN exotic COURIERsearches for these particles. investigations in ancient India, and published from pioneering scientific discoveries in Art Rosenfeld helped establish the Particle That per-capita usage of energy in California pentaquark baryons – robust predictionsThe destination forDP high-energy and collaborators, and other them in an article in the Indian Journal of experimental nuclear and particle physics Data Group among his many achievements. remained essentially constant from 1973 that continue to attract the attention ofphysics newsgroups, and jobs employed global fits of the History of Science in 2016. to innovations in science, technology, and to 2006, while it rose by 50% elsewhere in experimentalists and lattice-QCD experts.cerncourier.com solar-neutrino data, including the SNO DP leaves behind a loving wife, Monika, public policy for energy conservation that team, which used bubble chambers to the US, was given the name “The Rosenfeld Along with his collaborators, he suggested neutral-current data from 2002, to pin and a daughter, Kalyani. © 2011 CERN, for the benefit of the CMS collaboration continue to benefit humanity. His vision not discover many of the meson and baryon Effect,” because of Art’s success in getting the to look for a hard isolated lepton and jets as down the large-mixing-angle (LMA) ● Rajiv V Gavai. only underpins national policy but has helped resonances, including the omega meson and state to adopt policies encouraging efficient launch an industry in energy efficiency”. the S*(1385), which led to the recognition use of energy. Art’s first impact on the physics of SU(3) flavour symmetry. Art co-authored Art, together with a number of nuclear and community was with Jay Orear and Robert papers not only with experimenters, but also particle physicists, and with the backing of Schluter, when the three of them produced with Murray Gell-Mann, Shelly Glashow, Andrew Sessler, the director of the Lawrence The destination for high-energy the book Nuclear Physics consisting of the and Sam Treiman. The 1957 Annual Review Berkeley Laboratory in the mid-1970s, physics news and jobs notes from Fermi’s course at the University of Nuclear Science paper with Gell-Mann, developed programmes in energy efficiency of Chicago. Art came to Berkeley from “Hyperons and Heavy Mesons (Systematics for buildings, appliances and lighting, which CERNCOURIER cerncourier.com became a major part of the Laboratory’s Chicago and was part of Luis Alvarez’s and Decay)”, was the beginning of the © 2011 CERN, for the benefit of the CMS collaboration

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programme. Art’s efforts extended beyond California Energy Commission under two pragmatism the physics community values the laboratory. He was a founder of the state administrations. could be put to use on practical problems Thomas Massam 1936–2016 American Council for an Energy-Efficient Among the numerous honours Art facing humanity. The result of his dedication Economy, a non-profit organisation that received was the National Medal of Science was profound and lasting contributions to continues today to push for policies that and of Technology and Innovation presented energy efficiency. Despite Art’s ever growing Thomas Massam received his undergraduate in experiments that established evidence increase energy efficiency. Art served in the by president Barack Obama in 2011 for fame, he remained an unassuming colleague, degree in physics in 1956 at the Chadwick for the Standard Model during the 1960s Clinton administration from 1994 to 1999 as “extraordinary leadership in the development and we remember him as a friend whose Laboratory, Cambridge, and his PhD at CifarelliL and afterwards. He helped to set up the first CERNsenior adviser to the DOE’s assistantCOURIER secretary of energy-efficient building technologies and achievements transcended the scope of our the University of Liverpool in 1960. Jovial large-scale non-bubble-chamber facility at for energy efficiency and renewable energy, related standards and policies”. ordinary research endeavours. but very serious and tireless at work, Tom CERN, and was a close collaborator in our and subsequently as commissioner at the Art showed that the analytical skills and ● Robert N Cahn. devoted his life to experimental-physics adoption of electromagnetic calorimeters as a research and to his family. tool to separate leptons from hadrons to allow I had the privilege of meeting Tom at searches for new particle states. Together, the Fermi Summer School of Physics in we started the first heavy-lepton search and Durga Prasad Roy 1941–2017 Varenna, Italy, in 1962. The topics discussed developed a new technology to measure the at the school were the results of the Blackett time-of-flight of particles with a very high group on the unexpected V particles, later precision, leading to the first experimental Durga Prasad Roy, or DP as he was popularly Mikheyev–Smiron–Wolfenstein (MSW) TIFR called “strange” by Gell-Mann, and the observation of anti-deuteron production. known, passed away on 17 March in Cuttack, The destinationsolution to the solar-neutrino for high-energy problem. effects of “virtual physics” in properties Tom Massam helped to set up the first Tom, research director in the INFN India, after a brief illness. He was active This was tested by two impressive sets of of the elementary particles and the large-scale non-bubble-chamber facility unit of Bologna, was also giving regular until his last days, having posted a review physicsneutrino-spectrum news and results jobs published by the experimental-plus-theoretical research at CERN. physics courses to the students at the ISSP on the arXiv preprint server in August KamLAND experiment in 2003 and 2004. needed. Tom was the most active student of International School of Subnuclear Physics 2016, participated in conferences in 2017 Incorporating these data further in their the school, and soon afterwards he joined my is also one of the founders of the Ettore in Erice, established in 1963. and having given a series of lectures on analysis, and focussing on the LMA–MSW group at Bologna University and remained Majorana International Centre for Scientific Tom is no longer with us. On 1 December the Standard Model at the University of cerncourier.comsolution in the two-neutrino framework, there until his retirement in 2002. Together Culture, established at CERN in the early 2016 he left his beloved family, Veronica Hyderabad just a few days before he fell ill. DP and collaborators ruled out the high- we performed experiments in all of the 1960s with its headquarters in Erice, Sicily. with three children Peter, Steven, Paul, DP completed his PhD in particle physics mass-squared-difference LMA solution important laboratories in Europe, including In 1972, Tom initiated an International and his friends and colleagues with the in 1966 at the Tata Institute of Fundamental by more than three standard deviations

CERN, DESY, ADONE and Gran Sasso. School of Theory Application of Computers. unforgettable memory of his extraordinary Research (TIFR), Mumbai, and was a and converged on the low-mass-squared collaboration CMS the of benefit the for CERN, 2011 © Tom had an extraordinary intelligence, Tom played a major role, contributing life. postdoctoral fellow at the University of difference LMA as the unique solution. work capacity and “scientific fidelity”. He with his extraordinary experimental talents, ● Antonino Zichichi. California (1966–1968), CERN (1968–1969) His scientific achievements were and the University of Toronto (1969–1970). DP made pioneering contributions in recognised by the Meghnad Saha Award and He moved to the Rutherford Laboratory in particle and astroparticle physics. the SN Bose Medal. He was elected fellow the UK (1970–1974), and was a reader at of the Indian Academy of Sciences, Indian Arthur Rosenfeld 1926–2017 Visva Bharati University, India, from 1974 a signature of the top quark, a methodology National Science Academy and National to 1976. He joined TIFR in 1976 and retiredCERN widely adoptedCOURIER at the CERN and Tevatron Academy of Sciences. 30 years later in 2006. He then became a proton–antiproton colliders. Along with his colleague Probir Roy, DP Arthur H Rosenfeld, a long-time member of Particle Data Group. Today’s Particle Data member of the Homi Bhabha Centre of He also worked extensively on many started a series of workshops in high-energy the faculty at the University of California, LBNL Group and the Review of Particle Physics Science Education. Thepopular destination theories of forphysics high-energy beyond the physics phenomenology called WHEPP that Berkeley, and distinguished senior scientist at are, 60 years later, Art’s legacy to the physics Scientifically, DP had an instinct for Standardphysics Model, news such andas supersymmetry. jobs He still initiate a lot of collaborative work today. the Lawrence Berkeley National Laboratory, community. recognising what is important. He made suggested a promising signature with which He was passionate about undergraduate passed away in Berkeley on 27 January at Much greater still is Art’s legacy to the US pioneering contributions in particle- and to search for charged Higgs bosons using teaching, but also had many interests the age of 90. A student of Enrico Fermi, he and international communities, which benefit astroparticle-physics phenomenology. taucerncourier.com decays and the distinctive polarisation outside science. He was a weightlifting

was a leading participant in the revolutionary today from his relentless pursuit of increased © 2011His CERN, early for the benefit researchof the CMS collaboration work was in the area of these particles, which is currently being champion of Orissa, an expert swimmer, advances in particle physics in the 1950s and efficiency in the use of energy through of “Regge phenomenology and duality”, used in the ongoing search for charged and a connoisseur of Indian classical music 1960s before striking out in a new direction, both technological advances and political which addresses the dominant part of Higgs boson at the LHC. Likewise, the and dance. His passion for adventure where he became legendary. A fitting tribute advocacy. The oil embargo of 1973 led Art cross-sections for hadron–hadron collision missing transverse-momentum signature for always showed up in the after-work evening to Art was the award in 2006 of the Enrico to wonder why he saw so many obviously processes. Using these ideas, DP predicted supersymmetric particles suggested by DP activities at WHEPP workshops. He also Fermi Award of the US Department of Energy wasteful practices in the use of energy. He exotic mesons called baryonium (now is being widely used in the ongoing collider had strong views on the lack of experimental “for a lifetime of achievements ranging devoted the rest of his career to rectifying this. termed tetraquarks) as well asCERN exotic COURIERsearches for these particles. investigations in ancient India, and published from pioneering scientific discoveries in Art Rosenfeld helped establish the Particle That per-capita usage of energy in California pentaquark baryons – robust predictionsThe destination forDP high-energy and collaborators, and other them in an article in the Indian Journal of experimental nuclear and particle physics Data Group among his many achievements. remained essentially constant from 1973 that continue to attract the attention ofphysics newsgroups, and jobs employed global fits of the History of Science in 2016. to innovations in science, technology, and to 2006, while it rose by 50% elsewhere in experimentalists and lattice-QCD experts.cerncourier.com solar-neutrino data, including the SNO DP leaves behind a loving wife, Monika, public policy for energy conservation that team, which used bubble chambers to the US, was given the name “The Rosenfeld Along with his collaborators, he suggested neutral-current data from 2002, to pin and a daughter, Kalyani. © 2011 CERN, for the benefit of the CMS collaboration continue to benefit humanity. His vision not discover many of the meson and baryon Effect,” because of Art’s success in getting the to look for a hard isolated lepton and jets as down the large-mixing-angle (LMA) ● Rajiv V Gavai. only underpins national policy but has helped resonances, including the omega meson and state to adopt policies encouraging efficient launch an industry in energy efficiency”. the S*(1385), which led to the recognition use of energy. Art’s first impact on the physics of SU(3) flavour symmetry. Art co-authored Art, together with a number of nuclear and community was with Jay Orear and Robert papers not only with experimenters, but also particle physicists, and with the backing of Schluter, when the three of them produced with Murray Gell-Mann, Shelly Glashow, Andrew Sessler, the director of the Lawrence The destination for high-energy the book Nuclear Physics consisting of the and Sam Treiman. The 1957 Annual Review Berkeley Laboratory in the mid-1970s, physics news and jobs notes from Fermi’s course at the University of Nuclear Science paper with Gell-Mann, developed programmes in energy efficiency of Chicago. Art came to Berkeley from “Hyperons and Heavy Mesons (Systematics for buildings, appliances and lighting, which CERNCOURIER cerncourier.com became a major part of the Laboratory’s Chicago and was part of Luis Alvarez’s and Decay)”, was the beginning of the © 2011 CERN, for the benefit of the CMS collaboration

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F o r advertising e n q u i r i e s , c o n ta c t CERN C o u R i E R recruitment / c l a s s i F i e d, ioP P u b l i s h i n g , te m P l e c i r c u s , te m P l e Way, b r i s t o l bs1 6hg, uK. te l +44 (0)117 930 1264 Fa x +44 (0)117 930 1178 e- m a i l s a l e s @ cerncourier . c o m P l e a s e c o n ta c t u s F o r inFormation a b o u t r at e s , c o l o u r o P t i o n s , Publication d at e s a n d d e a d l i n e s . Facility for Antiproton and Ion Research Helmholtzzentrum für Schwerionenforschung GmbH

GSI Helmholtzzentrum für Schwerionenforschung operates a unique large-scale accelerator for ions. Researchers from around the world use this facility for experiments which help them make fascinating discoveries concerning the building blocks of matter and the evolution of the universe. In addition, they continually develop novel applications in medicine and technology. In the coming years the new international accelerator facility FAIR (Facility for Antiproton Tenure-track professor and Ion Research), one of the largest research projects worldwide, will be built at GSI. The department of „Superconducting Magnet Technology and Testing“ is responsible for the development, construction and testing of the superconducting magnets for the future FAIR accelerator facilities. – This Department positions is looking for a

The International Institute of Physics (IIP) invites Head of Superconducting Magnet Technology and Testing applications for up to two theory tenure-track professor Indicator: 6300-17.40 positions in Statistical Physics and/or in High Energy/ Quantum Gravity. For detailed information concerning tasks and profile of qualifications please refer to:www.gsi.de, „jobs/career“. We are offering an interesting and varied professional activity in an international reputable research institute. We Currently, the gross annual salary for these positions is BRL 251.598,23. offer an indefinite contract. Salary is equivalent to that for public employees as specified in the collective agreement for public employees (TVöD Bund). Interested applicants must submit the following information by Further information about FAIR and GSI is available at www.gsi.de and www.fair-center.eu. June 16, 2017: GSI supports the vocationalThe jobs development site for physics of women. and Therefore engineering women are especially encouraged to apply for the •Research plan; position. •List of publications; Severely disabled applicants will be given preference to other applicants with equal qualifications. •Curriculum vitae (including, in particular, date of birth, year and Please send your complete application including the usual documents, your salary expectation and the above Posting ID by June 30th 2017 to: institution of PhD, title of thesis and name of supervisor). GSI Helmholtzzentrum für Schwerionenforschung GmbH The candidate should also indicate the names and e-mail addresses of Abteilung Personal not less than three renowned physicists. These physicists will receive Planckstrasse 1 64291 Darmstadt · Germany an e-mail message from us with instructions on how to submit a or by E-Mail to: [email protected] recommendation letter on the candidate’s behalf.

The final decisions will be announced by the end of August 2017 and the selected candidates will be expected to start their activities at the IIP in November 2017 – although a different arrangement can also be agreed upon.

For further enquiries, please contact [email protected] or access our web page www.iip.ufrn.br.

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