CERN Courier September 2017 Faces & Places

A w A r d s IOP awards for 2017 announced

Each year, the UKʼs Institute of (IOP) has won the James Chadwick Medal and recognises outstanding and exceptional Prize, for his “outstanding contributions contributions to physics. 2017 sees five awards to the experimental study of heavy quarks go to those working in high-energy physics. and CP violation, most especially for his David Charlton of the University of leadership of, and his decisive contributions Birmingham in the UK received the Richard to, the LHCb experiment”. Nigel Glover of Glazebrook Medal and Prize (an IOP gold Durham University also won a subject medal medal) for his leadership in experimental – the John William Strutt, Lord Rayleigh Register Interest at www.icec27-icmc2018.org work on the electroweak , Medal and Prize – for pioneering new beginning with the study of Z-boson decays methods for the application of perturbative at LEP and culminating in the discovery quantum chromodynamics to high-energy of the at the LHC. He worked processes involving energetic jets, leading to on OPAL from 1989 to the end of data sophisticated simulation codes that are being taking at LEP, and on ATLAS where he was used to describe LHC data. spokesperson from 2013–2017. Fellow gold Finally, the Clifford Patterson Medal and Register Now! medalist, winning the Dirac medal and Prize, Prize, awarded for exceptional early career Conference 14-18 September 2017 is Michael Duff of Imperial College London contributions to the application of physics Exhibition 15-19 September 2017 and Oxford University, for his “sustained in an industrial or commercial context, groundbreaking contributions to theoretical went to Ceri Brenner of the UK Science and physics including the discovery of Weyl Technology Facilities Council, for “driving anomalies, for having pioneered Kaluza– the development of laser-driven accelerators Klein supergravity, and for recognising for applications and for leading collaborative that superstrings in 10 dimensions are partnerships between academia and industry Researchers working in high-energy physics merely a special case of membranes in an vital for the transfer of this technology were awarded five prizes from the UK 11-dimensional M-theory”. to tackle global challenges”. The awards (clockwise from top left): Former LHCb spokesperson, Guy will be presented at a ceremony in London David Charlton, Michael Duff, Guy Wilkinson of the University of Oxford, in November. Wilkinson, Nigel Glover and Ceri Brenner. Flerov prize for Witold Nazarewicz. nuclides, and his calculations have helped IBC2017 superheavy elements to clarify the unusual properties of these elements. The World’s Leading Media, Entertainment & A special Flerov prize for experimental Technology Show The 2017 Joint Institute for Nuclear research of heavy nuclei and synthesis Research (JINR) Flerov Prize has of elements with atomic numbers 115 Join over 1,700 exhibitors showcasing the latest technological been awarded to Witold Nazarewicz of (moscovium) and 117 (tennessine) was also innovations, 400+ speakers delivering the latest industry Michigan State University in the US awarded to James Roberto of Oak Ridge insights and 55,000+ attendees providing unlimited networking opportunities at IBC’s 50th annual conference and exhibition. for his contribution to the theoretical National Laboratory, Alexander Shushkin understanding of the properties of the (Elektrokhimpribor, Russia) and Vladimir heaviest elements. Nazarewicz’s research Utyonkov (JINR, Dubna). Over the last two Register at show.ibc.org focuses on rare isotopes, including decades, collaboration between JINR and #IBCShow superheavy nuclei and the heaviest elements US labs has changed our understanding of

that lie at the current borders of the chart of JINR the upper regions of the period table.

49

CCSep17_Faces&Places.indd 49 02/08/2017 16:11 CERNCOURIER www. V o l u m e 5 7 N u m b e r 7 S e p t e m b e r 2 0 1 7 CERN Courier September 2017 CERN Courier September 2017 Faces & Places Faces & Places

E v E n t s A nniversAries Reinhilde Veugelers of 10th anniversary the ERC Scientific DUNE breaks ground underground Council speaking at an

R Hahn/Fermilab event held in the Globe On 21 July, scientists and dignitaries of the ERC on 6 July to mark broke ground 1.5 km beneath the surface 10 years of the of South Dakota, US, to celebrate the start European Research of the construction of the international On 6 July, the Globe of Science and Council.

Long-Baseline Neutrino Facility (LBNF). Innovation hosted an event celebrating the J Ordan/CERN LBNF will host the international Deep 10th anniversary of the European Research Underground Neutrino Experiment Council (ERC). The ERC awards significant (DUNE), involving around 1000 scientists grants to scientists to allow them to carry from more than 160 institutions in 30 out cutting-edge research in institutes in the countries. The US$1 billion-plus LBNF/ European Union or in associated countries PT2026 NMR Precision Teslameter DUNE project will send an intense such as Switzerland. For the seven-year period neutrino beam through 1300 km of rock of Europe’s Horizon 2020 programme, the from Fermilab in Illinois to the DUNE ERC’s budget is €13.1 billion, 39% of which is Reach new heights detectors deep underground at the Sanford directed at physical sciences and engineering, Underground Research Facility in Lead, and its advanced grants are highly sought South Dakota. More than 800,000 tonnes after. The ERC held its plenary meeting in magnetic eld of rock will be excavated to create the four at CERN from 4 to 7 July, and the Globe huge chambers that will host the DUNE Representatives from US Congress, the US Department of Energy, the president’s office, South event saw CERN Director-General Fabiola detectors. Dakota state, CERN, INFN, STFC, and other project partners participated in the ceremony. Gianotti join other high-profile figures for a measurement The DUNE collaboration has begun round-table discussion about the role of the the process of identifying the scientific phenomena such as proton decay. in neutrino experiments worldwide. ERC and fundamental research in Europe. The Metrolab PT2026 sets a new institutions that will help build the Large prototype detectors for DUNE Earlier this summer, CERN completed standard for precision magnetometers. components for the full-sized detectors. The based on liquid-argon technology are already the refurbishment of part of the ICARUS Leveraging 30 years of expertise building cryostats and time projection chambers at currently under construction at CERN, detector, which was recently shipped to Brookhaven marks the heart of the four DUNE detectors will which is a major partner in the project Fermilab’s short-baseline neutrino facility, the world’s gold standard magnetometers, hold almost 70,000 tonnes of liquid argon (CERN Courier March 2017 p19). The and a CERN team is currently testing seven rich decades it takes magnetic  eld measurement to to detect neutrinos from Fermilab and CERN neutrino platform was established in a detector called Baby MIND for the new heights: measuring higher elds with

supernova and search for new subatomic 2013 to strengthen European participation WAGASCI experiment in Japan. BNL better resolution. J Ordan/CERN

Langevin-Joliot The PT2026 offers unprecedented  exibility travels back in time in the choice of parameters, interfacing and probe placement, as well as greatly improved tolerance of inhomogeneous Physicist Hélène Langevin-Joliot – emeritus research director in fundamental elds. And with Ethernet & USB interfaces nuclear physics at the CNRS in Orsay, and LabVIEW software, it  ts perfectly into granddaughter of Pierre and Marie Curie, Brookhaven site office manager Frank modern laboratory environments. and daughter of Frédéric Joliot and Irène Crescenzo (left) and the labʼs director Doon

Curie – came to CERN in early July, Gibbs kick off celebrations earlier this year. le - Photo: Scott Maxwell, Master www.agence-arca.com bringing to life a little-known piece of local history. On 25 July 1930, the International Brookhaven National Laboratory in the US Commission for Intellectual Cooperation is marking two anniversaries occurring this (an advisory body to the League of Nations), year. It is 70 years since Brookhaven lab which included Marie Curie and Albert (Above) Marie Curieʼs was founded in 1947 and 100 years since Einstein, visited a restaurant called Hotel granddaughter Hélène the founding of Camp Upton, the former Leger in Thoiry, a small village close to Langevin-Joliot at the Globe US Army base where the lab operates CERN that was often the site of highbrow talking about her exceptional today. Brookhaven has been at the forefront discussions (image, bottom). On invitation family and the current status of high-energy physics research since its from CMS physicist Chiara Mariotti, of women in science. (Left) early days, with the Alternating Gradient Langevin-Joliot, who is 89, retraced the Marie Curie (seated, far left) Synchrotron (AGS) leading to the discovery Ω– steps of her eminent ancestry during a visit at Hotel Leger, with Einstein of CP violation, the and charmed baryons, Pantone 286 Pantone 032 to the local area and CERN. Alongside seated third from the left. the J/ψ meson and the neutrino. Today her academic career, she has campaigned Curie was the first female to the lab is home to the Relativistic Heavy Ion against the deployment of nuclear weapons win a Nobel prize and remains Collider (RHIC), which has changed our view and championed access to scientific careers the only person to have won it of the quark–gluon plasma, and the National Magnetic precision has a name www.metrolab.com

for women and others. Lége Marie-Pierre Soulard in two different sciences. Synchrotron Light Source II (NSLS-II).

50 51

CCSep17_Faces&Places.indd 50 02/08/2017 16:12 CCSep17_Faces&Places.indd 51 02/08/2017 16:12 CERNCOURIER www. V o l u m e 5 7 N u m b e r 7 S e p t e m b e r 2 0 1 7 CERN Courier September 2017 CERN Courier September 2017 Faces & Places Faces & Places

E v E n t s A nniversAries Reinhilde Veugelers of 10th anniversary the ERC Scientific DUNE breaks ground underground Council speaking at an

R Hahn/Fermilab event held in the Globe On 21 July, scientists and dignitaries of the ERC on 6 July to mark broke ground 1.5 km beneath the surface 10 years of the of South Dakota, US, to celebrate the start European Research of the construction of the international On 6 July, the Globe of Science and Council.

Long-Baseline Neutrino Facility (LBNF). Innovation hosted an event celebrating the J Ordan/CERN LBNF will host the international Deep 10th anniversary of the European Research Underground Neutrino Experiment Council (ERC). The ERC awards significant (DUNE), involving around 1000 scientists grants to scientists to allow them to carry from more than 160 institutions in 30 out cutting-edge research in institutes in the countries. The US$1 billion-plus LBNF/ European Union or in associated countries PT2026 NMR Precision Teslameter DUNE project will send an intense such as Switzerland. For the seven-year period neutrino beam through 1300 km of rock of Europe’s Horizon 2020 programme, the from Fermilab in Illinois to the DUNE ERC’s budget is €13.1 billion, 39% of which is Reach new heights detectors deep underground at the Sanford directed at physical sciences and engineering, Underground Research Facility in Lead, and its advanced grants are highly sought South Dakota. More than 800,000 tonnes after. The ERC held its plenary meeting in magnetic eld of rock will be excavated to create the four at CERN from 4 to 7 July, and the Globe huge chambers that will host the DUNE Representatives from US Congress, the US Department of Energy, the president’s office, South event saw CERN Director-General Fabiola detectors. Dakota state, CERN, INFN, STFC, and other project partners participated in the ceremony. Gianotti join other high-profile figures for a measurement The DUNE collaboration has begun round-table discussion about the role of the the process of identifying the scientific phenomena such as proton decay. in neutrino experiments worldwide. ERC and fundamental research in Europe. The Metrolab PT2026 sets a new institutions that will help build the Large prototype detectors for DUNE Earlier this summer, CERN completed standard for precision magnetometers. components for the full-sized detectors. The based on liquid-argon technology are already the refurbishment of part of the ICARUS Leveraging 30 years of expertise building cryostats and time projection chambers at currently under construction at CERN, detector, which was recently shipped to Brookhaven marks the heart of the four DUNE detectors will which is a major partner in the project Fermilab’s short-baseline neutrino facility, the world’s gold standard magnetometers, hold almost 70,000 tonnes of liquid argon (CERN Courier March 2017 p19). The and a CERN team is currently testing seven rich decades it takes magnetic  eld measurement to to detect neutrinos from Fermilab and CERN neutrino platform was established in a detector called Baby MIND for the new heights: measuring higher elds with

supernova and search for new subatomic 2013 to strengthen European participation WAGASCI experiment in Japan. BNL better resolution. J Ordan/CERN

Langevin-Joliot The PT2026 offers unprecedented  exibility travels back in time in the choice of parameters, interfacing and probe placement, as well as greatly improved tolerance of inhomogeneous Physicist Hélène Langevin-Joliot – emeritus research director in fundamental elds. And with Ethernet & USB interfaces nuclear physics at the CNRS in Orsay, and LabVIEW software, it  ts perfectly into granddaughter of Pierre and Marie Curie, Brookhaven site office manager Frank modern laboratory environments. and daughter of Frédéric Joliot and Irène Crescenzo (left) and the labʼs director Doon

Curie – came to CERN in early July, Gibbs kick off celebrations earlier this year. le - Photo: Scott Maxwell, Master www.agence-arca.com bringing to life a little-known piece of local history. On 25 July 1930, the International Brookhaven National Laboratory in the US Commission for Intellectual Cooperation is marking two anniversaries occurring this (an advisory body to the League of Nations), year. It is 70 years since Brookhaven lab which included Marie Curie and Albert (Above) Marie Curieʼs was founded in 1947 and 100 years since Einstein, visited a restaurant called Hotel granddaughter Hélène the founding of Camp Upton, the former Leger in Thoiry, a small village close to Langevin-Joliot at the Globe US Army base where the lab operates CERN that was often the site of highbrow talking about her exceptional today. Brookhaven has been at the forefront discussions (image, bottom). On invitation family and the current status of high-energy physics research since its from CMS physicist Chiara Mariotti, of women in science. (Left) early days, with the Alternating Gradient Langevin-Joliot, who is 89, retraced the Marie Curie (seated, far left) Synchrotron (AGS) leading to the discovery Ω– steps of her eminent ancestry during a visit at Hotel Leger, with Einstein of CP violation, the and charmed baryons, Pantone 286 Pantone 032 to the local area and CERN. Alongside seated third from the left. the J/ψ meson and the muon neutrino. Today her academic career, she has campaigned Curie was the first female to the lab is home to the Relativistic Heavy Ion against the deployment of nuclear weapons win a Nobel prize and remains Collider (RHIC), which has changed our view and championed access to scientific careers the only person to have won it of the quark–gluon plasma, and the National Magnetic precision has a name www.metrolab.com

for women and others. Lége Marie-Pierre Soulard in two different sciences. Synchrotron Light Source II (NSLS-II).

50 51

CCSep17_Faces&Places.indd 50 02/08/2017 16:12 CCSep17_Faces&Places.indd 51 02/08/2017 16:12 CERNCOURIER www. V o l u m e 5 7 N u m b e r 7 S e p t e m b e r 2 0 1 7 CERN Courier September 2017 CERN Courier September 2017 Faces & Places Faces & Places

C o n f e r e n C e s A quarter DIS17 Venice EPS event showcases the best of HEP century of DIS workshops C Checchia C

With a total of 304 talks, Deep Inelastic Scattering 2017 (DIS17) demonstrated how deep inelastic scattering (DIS) and related topics permeate most aspects of high-energy physics and how we still have a huge amount to learn about strong interactions. Held at the in the UK from 3–7 April, more than 300 participants from 41 countries enjoyed a week of lively scientific discussion and largely Participants at the DIS17 meeting at the University of Birmingham campus. unanticipated sunshine. The first of this series of annual event, from the role of parton densities and total cross-sections, such as TOTEM's The Venice conference was attended by more than 1000 physicists from 50 countries. international workshops on DIS and related perturbative QCD dynamics in beyond-the observation of a non-exponential term in topics took place in Durham, UK, in the Standard Model searches and Higgs the four-momentum transfer dependence Major scientific gatherings such as the At the core of the LHC’s analysis , astrophysics and Spring of 1993, when the first results from boson studies, through the measurement of the elastic cross-section, are emerging European Physical Society (EPS) biennial programme is the exploration of the Higgs cosmology are closer today than ever, the world's only lepton-hadron collider, and interpretation of processes that are from the LHC data. Uncertainties in PDFs international conference on High Energy boson, which now enters its sixth year. as several sessions at the Venice event HERA at DESY, were discussed by around sensitive to parton densities (such as remain large at high x, and intense work is Physics offer a valuable opportunity to Particularly relevant is how the Higgs demonstrated. One clear area of interplay 80 participants. A quarter of a century electroweak gauge boson production), to ongoing to understand LHC observables reflect on the immense work and progress interacts with other particles, since this could is dark matter: if dark matter interacts only later, the workshop series has toured the topics that challenge our understanding of such as top-quark pair production, which taking place in our field, including the be altered by physics beyond the Standard through gravity, then finding it will be very globe, digested data from the full lifetime strong-interaction dynamics in the semi- and are sensitive in this region. New data and growing connections between particle Model. While the Higgs was first spotted difficult for accelerator-based studies, but of HERA and numerous fixed-target DIS non-perturbative regimes. Ten years after theoretical work are revealing the transverse physics and the universe at large. This year’s decaying into other bosons (W, Z, γ), ATLAS if it has a residual interaction with some experiments, as well as playing a major role HERA completed data-taking, the collider structure of the proton for the first time in EPS conference, held in Venice, Italy, from reported the first evidence for the decay of the known particles, then accelerators will in the development and understanding of still featured strongly. The final round of terms of transverse-momentum-dependent 5–12 July, was also the first large conference Higgs boson to a pair of bottom quarks, with a be leading the hunt for direct detection. hadron-collider physics. combined inclusive DIS data published in parton densities. The LHC’s proton– where the results from the 2015 and 2016 significance of 3.6σ, while CMS presented the Cosmology’s transformation to a precision The dominant theme of DIS17 this year 2016 by the H1 and ZEUS experiments have lead collision data are also constraining runs of the (LHC) at first observation by a single experiment of the science continues with the recent detection was the relevance of strong interactions, been integrated into global PDF fits, and nuclear PDFs in an unprecedented low-x 13 TeV were presented. decay to a pair of τ leptons, with a significance of gravitational waves, with LIGO’s results parton densities (PDFs) and DIS to the LHC. also for a handful of new measurements kinematic region. Setting the bar just a day into the Venice of 5.9σ. The Higgs mass is also narrowing to already placing the first limits on the mass But a wide and eclectic range of other topics and combinations. Heavy-ion collision Concerning the future of DIS, potential event, LHCb announced the discovery 125 GeV, while the fundamental scalar nature of the graviton at less than 7.7 × 10 –23 eV/c2. was included, notably new results from results from RHIC and the LHC were revolutions in our understanding could be of a new doubly charmed baryon from of the new particle continues to raise hope that There were also updates from dark-energy experiments at the Relativistic Heavy Ion also well represented, as were insights made with polarised proton and heavy-ion precision measurements of B decays, with it will lead to new insights. studies, and about precision CMB explorers Collider (RHIC), JLab and HERA, as well into 3D proton structure and hadron spin targets and with step changes in energy and heavy-flavour analyses continuing to offer The lack of direct signs of new physics at beyond Planck. as theoretical advances and future plans for from semi-inclusive DIS and polarised luminosity becoming abundantly clear. a rich seam of understanding. LHCb also the LHC is an increasing topic of discussion, Neutrino physics is also an extremely the field. proton–proton collisions at COMPASS, The EIC offers 3D hadron tomography and presented the intriguing anomalies being and underlies the importance of precision vibrant field, with neutrino oscillations Following plenary review talks covering the JLab and RHIC, and current and future DIS an unprecedented window on the spin and seen in the ratios of certain Standard Model measurements. Direct searches are pushing continuing to offer chances for discovery. latest news from the field, there followed two measurements with neutrinos. flavour structure of protons and ions. Its eA decays that hint at deviations from lepton the mass limits for new particles well into the The various neutrino-mixing angles are and a half days during which seven working Data from HERA and the LHC have scattering programme would probe low-x universality, with further data from LHC TeV range, but new physics could be hiding starting to be well measured and Nova groups operated in up to six simultaneous brought a new level of precision to the parton parton dynamics in a region where collective Run 2 hotly anticipated. in small and subtle effects. It is clear that and T2K are zooming in on the value of parallel sessions, covering: PDFs; low proton densities of the proton, with associated effects ultimately leading to gluon saturation The LHC is firmly in the precision there is physics beyond the Standard Model, the CP-violating phase, which seems to be momentum fraction (Bjorken-x) physics; theoretical advances including the push are expected to become important. The business these days. In the last two years, just not what it is, and one issue is how to large, given tantalising hints from T2K. The Higgs and beyond-the-Standard Model towards higher order (next-to-next-to- LHeC offers a standalone Higgs production the machine has delivered large amounts communicate this scientifically fascinating hunt for sterile neutrinos continues, and for (BSM) studies in hadron collisions; hadronic, next-to leading order) descriptions. Taming programme complementary to that of the of collision data to the experiments but non-headline-worthy aspect of today’s neutrinoless double beta decay, with several electroweak and heavy-flavour observables; the “pathological” rise of the proton gluon LHC, as well as a new level in precision in and striking progress has been made in particle-physics landscape. searches ongoing worldwide. spin and 3D hadron structure; and future density at low-x in the perturbative domain PDFs that could be applied to extend the analysis techniques. These have enabled High precision is also being attained in In summary, the 2017 EPS-HEP facilities. The Birmingham event included a remains a major topic, which is now being sensitivity to new physics at the LHC. The measurements of rare electroweak processes studies of the strong interaction. ALICE, for conference clearly demonstrated how we are topical lecture on probing ultra-low-x QCD addressed experimentally in ultra-peripheral ep and eA scattering programme also would such as the associated production of a example, reported an increase in strangeness progressing towards a full understanding with cosmic neutrinos at IceCube and Auger, collisions and forward measurements at probe low-x parton dynamics in the region , a Z boson and a quark (tZq) by production with charged multiplicity that both of the vastness of the universe and of and a special session was devoted to the status the LHC, as well as through theoretical where gluon saturation is expected to be ATLAS, for example, and the definitive seems to connect smoothly the regimes seen the tiniest constituents of matter. There and scientific opportunities offered by future modelling of low-x, low-Q2 HERA data firmly established. Together, the proposed observation of WW scattering by CMS. in pp, pPb and PbPb collisions. Overall, and are many more results to look forward to, proposed DIS facilities at CERN such as the with nonlinear parton dynamics and facilities open up an exciting set of new Top physics is another booming topic, with increasingly with complementary results many of which will be ready for the next Large Hadron electron Collider, LHeC) and resummation techniques. The related topic windows on hadronic matter with relevance new top-mass and single-top production from the other LHC experiments, ALICE EPS-HEP event in Ghent, Belgium, in 2019. at BNL or JLab in the US (the Electron Ion of diffractive electron–proton scattering to major questions such as quark confinement measurements and many other results, is closing in on the evolution of the quark– As summed up by the conference highlights: Collider, EIC). and the heavily gluon-dominated diffractive and hadronic mass generation. including “legacy” measurements from the gluon plasma, and thus on understanding the the field is advancing on all fronts – and it’s All aspects of proton–proton collisions PDFs is benefiting from the full HERA The next instalment of DIS in April 2018, Tevatron experiments, on show. very early universe. impressive. at the LHC featured during this year’s DIS statistics. New insights into elastic and to be held in Kobe, Japan, is eagerly awaited.

52 53

CCSep17_Faces&Places.indd 52 02/08/2017 16:12 CCSep17_Faces&Places.indd 53 02/08/2017 16:12 CERNCOURIER www. V o l u m e 5 7 N u m b e r 7 S e p t e m b e r 2 0 1 7 CERN Courier September 2017 CERN Courier September 2017 Faces & Places Faces & Places

C o n f e r e n C e s A quarter DIS17 Venice EPS event showcases the best of HEP century of DIS workshops C Checchia C

With a total of 304 talks, Deep Inelastic Scattering 2017 (DIS17) demonstrated how deep inelastic scattering (DIS) and related topics permeate most aspects of high-energy physics and how we still have a huge amount to learn about strong interactions. Held at the University of Birmingham in the UK from 3–7 April, more than 300 participants from 41 countries enjoyed a week of lively scientific discussion and largely Participants at the DIS17 meeting at the University of Birmingham campus. unanticipated sunshine. The first of this series of annual event, from the role of parton densities and total cross-sections, such as TOTEM's The Venice conference was attended by more than 1000 physicists from 50 countries. international workshops on DIS and related perturbative QCD dynamics in beyond-the observation of a non-exponential term in topics took place in Durham, UK, in the Standard Model searches and Higgs the four-momentum transfer dependence Major scientific gatherings such as the At the core of the LHC’s analysis Particle physics, astrophysics and Spring of 1993, when the first results from boson studies, through the measurement of the elastic cross-section, are emerging European Physical Society (EPS) biennial programme is the exploration of the Higgs cosmology are closer today than ever, the world's only lepton-hadron collider, and interpretation of processes that are from the LHC data. Uncertainties in PDFs international conference on High Energy boson, which now enters its sixth year. as several sessions at the Venice event HERA at DESY, were discussed by around sensitive to parton densities (such as remain large at high x, and intense work is Physics offer a valuable opportunity to Particularly relevant is how the Higgs demonstrated. One clear area of interplay 80 participants. A quarter of a century electroweak gauge boson production), to ongoing to understand LHC observables reflect on the immense work and progress interacts with other particles, since this could is dark matter: if dark matter interacts only later, the workshop series has toured the topics that challenge our understanding of such as top-quark pair production, which taking place in our field, including the be altered by physics beyond the Standard through gravity, then finding it will be very globe, digested data from the full lifetime strong-interaction dynamics in the semi- and are sensitive in this region. New data and growing connections between particle Model. While the Higgs was first spotted difficult for accelerator-based studies, but of HERA and numerous fixed-target DIS non-perturbative regimes. Ten years after theoretical work are revealing the transverse physics and the universe at large. This year’s decaying into other bosons (W, Z, γ), ATLAS if it has a residual interaction with some experiments, as well as playing a major role HERA completed data-taking, the collider structure of the proton for the first time in EPS conference, held in Venice, Italy, from reported the first evidence for the decay of the known particles, then accelerators will in the development and understanding of still featured strongly. The final round of terms of transverse-momentum-dependent 5–12 July, was also the first large conference Higgs boson to a pair of bottom quarks, with a be leading the hunt for direct detection. hadron-collider physics. combined inclusive DIS data published in parton densities. The LHC’s proton– where the results from the 2015 and 2016 significance of 3.6σ, while CMS presented the Cosmology’s transformation to a precision The dominant theme of DIS17 this year 2016 by the H1 and ZEUS experiments have lead collision data are also constraining runs of the Large Hadron Collider (LHC) at first observation by a single experiment of the science continues with the recent detection was the relevance of strong interactions, been integrated into global PDF fits, and nuclear PDFs in an unprecedented low-x 13 TeV were presented. decay to a pair of τ leptons, with a significance of gravitational waves, with LIGO’s results parton densities (PDFs) and DIS to the LHC. also for a handful of new measurements kinematic region. Setting the bar just a day into the Venice of 5.9σ. The Higgs mass is also narrowing to already placing the first limits on the mass But a wide and eclectic range of other topics and combinations. Heavy-ion collision Concerning the future of DIS, potential event, LHCb announced the discovery 125 GeV, while the fundamental scalar nature of the graviton at less than 7.7 × 10 –23 eV/c2. was included, notably new results from results from RHIC and the LHC were revolutions in our understanding could be of a new doubly charmed baryon from of the new particle continues to raise hope that There were also updates from dark-energy experiments at the Relativistic Heavy Ion also well represented, as were insights made with polarised proton and heavy-ion precision measurements of B decays, with it will lead to new insights. studies, and about precision CMB explorers Collider (RHIC), JLab and HERA, as well into 3D proton structure and hadron spin targets and with step changes in energy and heavy-flavour analyses continuing to offer The lack of direct signs of new physics at beyond Planck. as theoretical advances and future plans for from semi-inclusive DIS and polarised luminosity becoming abundantly clear. a rich seam of understanding. LHCb also the LHC is an increasing topic of discussion, Neutrino physics is also an extremely the field. proton–proton collisions at COMPASS, The EIC offers 3D hadron tomography and presented the intriguing anomalies being and underlies the importance of precision vibrant field, with neutrino oscillations Following plenary review talks covering the JLab and RHIC, and current and future DIS an unprecedented window on the spin and seen in the ratios of certain Standard Model measurements. Direct searches are pushing continuing to offer chances for discovery. latest news from the field, there followed two measurements with neutrinos. flavour structure of protons and ions. Its eA decays that hint at deviations from lepton the mass limits for new particles well into the The various neutrino-mixing angles are and a half days during which seven working Data from HERA and the LHC have scattering programme would probe low-x universality, with further data from LHC TeV range, but new physics could be hiding starting to be well measured and Nova groups operated in up to six simultaneous brought a new level of precision to the parton parton dynamics in a region where collective Run 2 hotly anticipated. in small and subtle effects. It is clear that and T2K are zooming in on the value of parallel sessions, covering: PDFs; low proton densities of the proton, with associated effects ultimately leading to gluon saturation The LHC is firmly in the precision there is physics beyond the Standard Model, the CP-violating phase, which seems to be momentum fraction (Bjorken-x) physics; theoretical advances including the push are expected to become important. The business these days. In the last two years, just not what it is, and one issue is how to large, given tantalising hints from T2K. The Higgs and beyond-the-Standard Model towards higher order (next-to-next-to- LHeC offers a standalone Higgs production the machine has delivered large amounts communicate this scientifically fascinating hunt for sterile neutrinos continues, and for (BSM) studies in hadron collisions; hadronic, next-to leading order) descriptions. Taming programme complementary to that of the of collision data to the experiments but non-headline-worthy aspect of today’s neutrinoless double beta decay, with several electroweak and heavy-flavour observables; the “pathological” rise of the proton gluon LHC, as well as a new level in precision in and striking progress has been made in particle-physics landscape. searches ongoing worldwide. spin and 3D hadron structure; and future density at low-x in the perturbative domain PDFs that could be applied to extend the analysis techniques. These have enabled High precision is also being attained in In summary, the 2017 EPS-HEP facilities. The Birmingham event included a remains a major topic, which is now being sensitivity to new physics at the LHC. The measurements of rare electroweak processes studies of the strong interaction. ALICE, for conference clearly demonstrated how we are topical lecture on probing ultra-low-x QCD addressed experimentally in ultra-peripheral ep and eA scattering programme also would such as the associated production of a example, reported an increase in strangeness progressing towards a full understanding with cosmic neutrinos at IceCube and Auger, collisions and forward measurements at probe low-x parton dynamics in the region top quark, a Z boson and a quark (tZq) by production with charged multiplicity that both of the vastness of the universe and of and a special session was devoted to the status the LHC, as well as through theoretical where gluon saturation is expected to be ATLAS, for example, and the definitive seems to connect smoothly the regimes seen the tiniest constituents of matter. There and scientific opportunities offered by future modelling of low-x, low-Q2 HERA data firmly established. Together, the proposed observation of WW scattering by CMS. in pp, pPb and PbPb collisions. Overall, and are many more results to look forward to, proposed DIS facilities at CERN such as the with nonlinear parton dynamics and facilities open up an exciting set of new Top physics is another booming topic, with increasingly with complementary results many of which will be ready for the next Large Hadron electron Collider, LHeC) and resummation techniques. The related topic windows on hadronic matter with relevance new top-mass and single-top production from the other LHC experiments, ALICE EPS-HEP event in Ghent, Belgium, in 2019. at BNL or JLab in the US (the Electron Ion of diffractive electron–proton scattering to major questions such as quark confinement measurements and many other results, is closing in on the evolution of the quark– As summed up by the conference highlights: Collider, EIC). and the heavily gluon-dominated diffractive and hadronic mass generation. including “legacy” measurements from the gluon plasma, and thus on understanding the the field is advancing on all fronts – and it’s All aspects of proton–proton collisions PDFs is benefiting from the full HERA The next instalment of DIS in April 2018, Tevatron experiments, on show. very early universe. impressive. at the LHC featured during this year’s DIS statistics. New insights into elastic and to be held in Kobe, Japan, is eagerly awaited.

52 53

CCSep17_Faces&Places.indd 52 02/08/2017 16:12 CCSep17_Faces&Places.indd 53 02/08/2017 16:12 CERNCOURIER www. V o l u m e 5 7 N u m b e r 7 S e p t e m b e r 2 0 1 7 CERN Courier September 2017 CERN Courier September 2017 Ultra High Performance Faces & Places Faces & Places Silicon Drift Detector

® HEPTech helps transform ideas into innovations V i s i t s FAST SDD Prime minister of Montenegro Count Rate = >1,000,000 CPS Duško Markovic´ came to For a fourth consecutive year, the G Otto/GSI CERN on 7 July. He visited the High-Energy Physics Technology Transfer underground area at CMS, during The True State-of-the-Art which he signed a memorandum Network (HEPTech), initiated by CERN in • New in-house manufacturing 2006, brought together early stage researchers of understanding between All image credits: S Bennett in high-energy physics and related scientific Montenegro and CERN with • Lower noise domains to help them transform their research CERN director for research • Lower leakage current ideas into marketable innovations. The and computing Eckhard Elsen symposium was hosted by the GSI Helmholtz (pictured right). • Better charge collection Centre for Heavy Ion Research in Darmstadt, Germany, from 19–23 June. 25 mm2 FAST SDD® 55Fe Spectrum Twenty participants from 11 European 25 mm2 FAST SDD® 800,000 230K, Tpk = 8 µs 1,000,000 countries met with entrepreneurs and Peak to 1 keV background Mn Kα 26,000:1 100,000 experienced scientists, learning about Mn Kβ 600,000 technology-push, design-thinking technology 10,000 characterisation and value proposition. On 14 July, Monique T G van Daalen, COUNTS Prominent speakers introduced delegates to ambassador of the Netherlands to the 400,000 122 eV FWHM 1,000 United Nations Office, visited CERN. the specifics of collaborations in physics, the 100 management of large research projects and Before signing the guestbook with 200,000 decision-making, in a scientific environment. CERN Director-General Fabiola Gianotti 10

By exploring real cases, the long road from and president of the CERN Council 0 1 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 an innovation to a patent or licence and how Sijbrand de Jong (pictured), she visited Energy (keV) to deal with intellectual-property rights, was the Antiproton Decelerator and ATLAS. Resolution vs Peaking Time made clear. Basic requirements for public 2017 HEPTech Symposium participants at Darmstadt. 180 25 mm2 funding and some funding opportunities 170 for start-ups were presented, in addition to Raspberry Pi revealed how developments the aim of attracting investor attention. tips about how to avoid unexpected traps in research are transformed into successful All topics were presented by experienced 160 Standard SDD entrepreneurs might face. marketable products and how to develop professionals, entrepreneurs and ® Within the week-long event, the secrets a commercially sustainable product technology-transfer experts, and participants 150 FAST SDD of successful project management were in a competitive environment. A great enjoyed the networking opportunities on 140

discussed, and the importance of appropriate challenge for the early stage researchers offer. The next HEPTech symposium will be keV) @ 5.9 FWHM on(eV ti staffing and negotiation techniques. was to prepare short pitches presenting their held in June 2018 at the extreme light source Mukhtar Ahmed, chairman higher 130 Resolution (eV FWHM @ 5.9 keV) education commission of Pakistan, Resolu The entrepreneurship success story of research projects to an expert panel, with ELI-ALPS in Szeged, Hungary. 120 pictured with Christoph Schäfer of 0.000 1.00 1 2.00 2 3.00 3 4.00 4 5.00 5

R Bailey Peaking Time (μs) CERN after signing the guestbook. Peaking Time (µs) The CERN Accelerator School (CAS) and During the 17 July visit, he took in the MAX IV Laboratory jointly organised a synchrocyclotron, ALICE, IdeaSquare, Options: specialised course on vacuum for particle S’Cool LAB and CMS. • 25 mm2 active area collimated to 17 mm2 accelerators in Glumslov, Sweden from • 70 mm2 collimated to 50 mm2 6–16 June. The course attracted 80 participants of 27 nationalities, • Windows: Be (0.5 mil) 12.5 µm, or comprising 30 hours of lectures and 17 C Series (Si3N4) hours of practical tutorial work. Lectures • TO-8 package fits all Amptek configurations covered material properties, impedance • Vacuum applications and instabilities, gauges and pumps, surface properties and treatments, beam-induced effects, computational Monsieur Henri-Michel Comet, techniques and controls, manufacturing préfet de la région Auvergne- and acceptance, and a look to the future. Rhône-Alpes, France, was at The practical work included hands-on CERN on 20 July, during which experience of impedance calculations, he visited the synchrocyclotron residual gas analysis and leak-detection and CMS, and signed the techniques. An advanced accelerator- guestbook in the presence of physics course will be held in the UK in CERN Director-General Fabiola late summer and a joint accelerator school Gianotti. 40 Years of on radio-frequency technologies will be Products for Your Imagination held in Kanagawa, Japan, from 16–26 October. Pictured are CAS participants ® AMPTEK Inc. touring the new MAX IV storage ring. [email protected] www.amptek.com

54

CCSep17_Faces&Places.indd 54 02/08/2017 16:12 CCSep17_Faces&Places.indd 55 02/08/2017 16:13 CERNCOURIER www. V o l u m e 5 7 N u m b e r 7 S e p t e m b e r 2 0 1 7 CERN Courier September 2017 CERN Courier September 2017 Ultra High Performance Faces & Places Faces & Places Silicon Drift Detector

® HEPTech helps transform ideas into innovations V i s i t s FAST SDD Prime minister of Montenegro Count Rate = >1,000,000 CPS Duško Markovic´ came to For a fourth consecutive year, the G Otto/GSI CERN on 7 July. He visited the High-Energy Physics Technology Transfer underground area at CMS, during The True State-of-the-Art which he signed a memorandum Network (HEPTech), initiated by CERN in • New in-house manufacturing 2006, brought together early stage researchers of understanding between All image credits: S Bennett in high-energy physics and related scientific Montenegro and CERN with • Lower noise domains to help them transform their research CERN director for research • Lower leakage current ideas into marketable innovations. The and computing Eckhard Elsen symposium was hosted by the GSI Helmholtz (pictured right). • Better charge collection Centre for Heavy Ion Research in Darmstadt, Germany, from 19–23 June. 25 mm2 FAST SDD® 55Fe Spectrum Twenty participants from 11 European 25 mm2 FAST SDD® 800,000 230K, Tpk = 8 µs 1,000,000 countries met with entrepreneurs and Peak to 1 keV background Mn Kα 26,000:1 100,000 experienced scientists, learning about Mn Kβ 600,000 technology-push, design-thinking technology 10,000 characterisation and value proposition. On 14 July, Monique T G van Daalen, COUNTS Prominent speakers introduced delegates to ambassador of the Netherlands to the 400,000 122 eV FWHM 1,000 United Nations Office, visited CERN. the specifics of collaborations in physics, the 100 management of large research projects and Before signing the guestbook with 200,000 decision-making, in a scientific environment. CERN Director-General Fabiola Gianotti 10

By exploring real cases, the long road from and president of the CERN Council 0 1 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 an innovation to a patent or licence and how Sijbrand de Jong (pictured), she visited Energy (keV) to deal with intellectual-property rights, was the Antiproton Decelerator and ATLAS. Resolution vs Peaking Time made clear. Basic requirements for public 2017 HEPTech Symposium participants at Darmstadt. 180 25 mm2 funding and some funding opportunities 170 for start-ups were presented, in addition to Raspberry Pi revealed how developments the aim of attracting investor attention. tips about how to avoid unexpected traps in research are transformed into successful All topics were presented by experienced 160 Standard SDD entrepreneurs might face. marketable products and how to develop professionals, entrepreneurs and ® Within the week-long event, the secrets a commercially sustainable product technology-transfer experts, and participants 150 FAST SDD of successful project management were in a competitive environment. A great enjoyed the networking opportunities on 140

discussed, and the importance of appropriate challenge for the early stage researchers offer. The next HEPTech symposium will be keV) @ 5.9 FWHM on(eV ti staffing and negotiation techniques. was to prepare short pitches presenting their held in June 2018 at the extreme light source Mukhtar Ahmed, chairman higher 130 Resolution (eV FWHM @ 5.9 keV) education commission of Pakistan, Resolu The entrepreneurship success story of research projects to an expert panel, with ELI-ALPS in Szeged, Hungary. 120 pictured with Christoph Schäfer of 0.000 1.00 1 2.00 2 3.00 3 4.00 4 5.00 5

R Bailey Peaking Time (μs) CERN after signing the guestbook. Peaking Time (µs) The CERN Accelerator School (CAS) and During the 17 July visit, he took in the MAX IV Laboratory jointly organised a synchrocyclotron, ALICE, IdeaSquare, Options: specialised course on vacuum for particle S’Cool LAB and CMS. • 25 mm2 active area collimated to 17 mm2 accelerators in Glumslov, Sweden from • 70 mm2 collimated to 50 mm2 6–16 June. The course attracted 80 participants of 27 nationalities, • Windows: Be (0.5 mil) 12.5 µm, or comprising 30 hours of lectures and 17 C Series (Si3N4) hours of practical tutorial work. Lectures • TO-8 package fits all Amptek configurations covered material properties, impedance • Vacuum applications and instabilities, gauges and pumps, surface properties and treatments, beam-induced effects, computational Monsieur Henri-Michel Comet, techniques and controls, manufacturing préfet de la région Auvergne- and acceptance, and a look to the future. Rhône-Alpes, France, was at The practical work included hands-on CERN on 20 July, during which experience of impedance calculations, he visited the synchrocyclotron residual gas analysis and leak-detection and CMS, and signed the techniques. An advanced accelerator- guestbook in the presence of physics course will be held in the UK in CERN Director-General Fabiola late summer and a joint accelerator school Gianotti. 40 Years of on radio-frequency technologies will be Products for Your Imagination held in Kanagawa, Japan, from 16–26 October. Pictured are CAS participants ® AMPTEK Inc. touring the new MAX IV storage ring. [email protected] www.amptek.com

54

CCSep17_Faces&Places.indd 54 02/08/2017 16:12 CCSep17_Faces&Places.indd 55 02/08/2017 16:13 CERNCOURIER www. V o l u m e 5 7 N u m b e r 7 S e p t e m b e r 2 0 1 7 CERN Courier September 2017 CERN Courier September 2017 Faces & Places Faces & Places

O b i t u a r i e s awards, including the 200 IEEE Nuclear Physical Society, and in 2013 he was and is survived by their two children, Keiko and Plasma Sciences Society Accelerator recognised with Japanʼs prestigious Order of Simon and Tsuyoshi Ozaki, their spouses, Science and Technology Award and the 2009 the Sacred Treasure. and four grandchildren. Vinod Chohan 1949–2017 Robert R Wilson Prize of the American Ozaki was predeceased by his wife, Yoko, ● Brookhaven National Laboratory.

Vinod “Nick” Chohan came to CERN in LHC prototype-sector and then all of the 1975 as a fellow, then went to SIN (today 1706 superconducting bending magnets. assen tanislavov tanev PSI) near Zürich. In 1980 he returned to CERN manpower was insufficient, but a CERN as a machine-supervisor in the PS collaboration with India, managed by Nick, division. At that time, the construction of the made it possible. assen Stanev of the Bulgarian school of Stanev was completeness relations for 2D CFTs in the Antiproton Accumulator (AA, the world’s Once the LHC became operational, Nick theoretical physics and INFN at the niversity an expert in presence of boundaries and cross-caps, and first machine to produce, accumulate and returned to his old affinity with antiprotons, of Rome Tor ergata, passed away on 9 June conformal his related results on open strings (which store antiprotons) was just finished and the now at the low-energy end of the programme, after a short illness. He was born in Sofi a, fi eld theories include the fi rst chiral type-I superstring team was busy running it in. The purpose of as editor of the ELENA design report. In Bulgaria, on 4 July 1962. After graduating in model in four dimensions) are well known the AA was to supply antiprotons to the SPS 2014, the 65 year bell rang in his retirement. physics at the University of Sofi a, he worked among string theorists. After the advent of to allow it to function as a proton–antiproton But for Nick, that was not a reason to stop in its theoretical-physics department before the AdS/CFT correspondence, he worked collider, and Nick became a prominent Nick Chohan’s charisma will be missed work at CERN. He joined the CERN joining the Institute for Nuclear Research and extensively on N 4 S and its conformal member of the AA operations team that scientific information service and provided Nuclear Energy of the Bulgarian Academy of deformations. His last research, on two-point made this possible. His speciality was the When, in 1991, the PS Beam Diagnostics highly welcome help on accelerator physics Sciences in 1992. Stanev defended his PhD correlators in N 2 gauge theories, involved controls aspects of the highly complicated (BD) Group was founded, Nick was the literature, photographic documentation and thesis on conformally invariant quantum-fi eld theories (CFTs), quantum groups, string an international team of colleagues and processes within the AA and for the transfer natural choice to become the section leader articles for Wikipedia. theory models in 1994 under the guidance theory and gauge theories. His work on appeared a month before his premature death. of the antiprotons to the SPS. Simon van for systems integration with the PS controls. Throughout his years at CERN, we all of Ivan Todorov, who has long been a the structure of the conformally invariant Stanev was also a gifted teacher and, der Meer, inventor of stochastic cooling, In 1996, when the high-energy collider knew Nick as friendly and easy-going, distinguished Bulgarian visitor of the CERN three-point correlation of the stress-energy during the last few years, he was a member of on which the AA was based, had written part of CERN’s antiproton programme was always helpful and dedicated in his typical theory department. Since 2004, he had been tensor, published while he was a PhD the INFN theoretical-physics committee. We practically all of the software himself, in his terminated, Nick took on the additional competent manner. We are deeply moved by working at the University of Rome. student in his 20s, is still infl uential today. will miss his wit, humour, critical views and own highly sophisticated style. Nick became responsibility of PS divisional safety officer. his sudden disappearance and shall hold on Stanev had a wide range of scientifi c His pioneering work in the mid 1990s with his friendship. the only one to fully understand it, and later Then, in 2002, he became heavily involved to the memory of the many good moments interests, including super-conformal fi eld his Italian colleagues unveiled the general ● His friends and colleagues. extend it to the Antiproton Collector (AC) in the LHC project. Nick moved to the and years of collaboration and friendship and convert it for integration into the PS Accelerator Technology (AT) Division, that we shared with him. controls system. where he led a team that first tested an ● His friends and colleagues.

Photodetector Modules POWERED BY Satoshi Ozaki 1929–2017 with over light detection flag

World-renowned physicist Satoshi Ozaki, BNL in 1987, accelerating and storing beams who helped design and build accelerators of electrons and positrons at 30 GeV – the for scientific research across two continents highest energy in the world at the time. In including two of the flagship facilities at 1989, Ozaki returned to Brookhaven to head The World’s Most Advanced Brookhaven National Laboratory (BNL), the Relativistic Heavy Ion Collider (RHIC) Digital Pulse Processor died on 22 July aged 88. He was a senior project, which achieved first collisions in scientist emeritus at BNL and a key driver of 2000 and is now the highest energy collider for high-rate Spectroscopy international collaborations in high-energy in the US, with many important discoveries and nuclear physics. about the quark–gluon plasma under its Ozaki joined Brookhaven Lab in 1959 belt. Ozaki was also essential in securing with a master's degree in physics from Japanese support for RHIC-related projects. • Up to 8 channels Osaka University, Japan, and a PhD in Satoshi Ozaki, builder of accelerators and In 2005, Ozaki joined the National of simultaneous physics from the Massachusetts Institute scientific collaborations across continents. Synchrotron Light Source II (NSLS-II) processing of Technology. He worked in a group he project. As the initial head of the NSLS-II Our new range of photon counting modules is available with 25 mm and 30 eventually co-led with Samuel Lindenbaum experimental groups at Brookhaven and accelerator division, Ozaki built up the mm diameter low noise photomultipliers. The latest modules come with an • Over 3 Mcps on experiments at Brookhaven's Alternating collaborating universities. In addition, group and remained with the project as a over light detection output. processed by Gradient Synchrotron (AGS), developing Ozaki led the development of detectors for senior advisor even after formally retiring each channel state-of-the-art electronic detectors and an ISABELLE, the first design for a dual-ring at the end of 2012. He took on the major Our wide range of products cover photomultipliers, light-tight housings, HV online data facility for monitoring detector superconducting collider at Brookhaven. task of procuring the storage-ring magnets, supplies and associated custom built electronics. [email protected] performance by reconstructing subsets of Ozakiʼs work in large-scale detector and attended the formal dedication of the Tel: +1-510-401-5760 ET Enterprises Limited, Riverside Way ADIT Electron Tubes, 300 Crane Street, data in real time. This was the first system development led to an invitation in 1981 completed facility in February 2015. Ozaki Uxbridge, UB8 2YF, UK Sweetwater, Texas 79556, USA www.xia.com of its kind and is now a routine component from KEK to direct the construction of was also involved in the Facility for Rare Phone: +44 (0)1895 200880 Phone: (325) 235 1418 www.et-enterprises.com www.electrontubes.com of data-acquisition systems for complex TRISTAN, the first major high-energy Isotope Beams (FRIB) currently under electronic detectors. The Ozaki–Lindenbaum particle collider in Japan. Under Ozaki, construction at Michigan State University. group also developed a multiparticle this $500 million project was completed on Ozakiʼs accomplishments have been spectrometer at the AGS that served many time and within budget to start operations recognised with numerous prestigious

56 5

CCSep17_Faces&Places.indd 56 02/08/2017 16:13 CCSep17_Faces&Places.indd 57 02/08/2017 16:13 CERNCOURIER www. V o l u m e 5 7 N u m b e r 7 S e p t e m b e r 2 0 1 7 CERN Courier September 2017 CERN Courier September 2017 Faces & Places Faces & Places

O b i t u a r i e s awards, including the 200 IEEE Nuclear Physical Society, and in 2013 he was and is survived by their two children, Keiko and Plasma Sciences Society Accelerator recognised with Japanʼs prestigious Order of Simon and Tsuyoshi Ozaki, their spouses, Science and Technology Award and the 2009 the Sacred Treasure. and four grandchildren. Vinod Chohan 1949–2017 Robert R Wilson Prize of the American Ozaki was predeceased by his wife, Yoko, ● Brookhaven National Laboratory.

Vinod “Nick” Chohan came to CERN in LHC prototype-sector and then all of the 1975 as a fellow, then went to SIN (today 1706 superconducting bending magnets. assen tanislavov tanev PSI) near Zürich. In 1980 he returned to CERN manpower was insufficient, but a CERN as a machine-supervisor in the PS collaboration with India, managed by Nick, division. At that time, the construction of the made it possible. assen Stanev of the Bulgarian school of Stanev was completeness relations for 2D CFTs in the Antiproton Accumulator (AA, the world’s Once the LHC became operational, Nick theoretical physics and INFN at the niversity an expert in presence of boundaries and cross-caps, and first machine to produce, accumulate and returned to his old affinity with antiprotons, of Rome Tor ergata, passed away on 9 June conformal his related results on open strings (which store antiprotons) was just finished and the now at the low-energy end of the programme, after a short illness. He was born in Sofi a, fi eld theories include the fi rst chiral type-I superstring team was busy running it in. The purpose of as editor of the ELENA design report. In Bulgaria, on 4 July 1962. After graduating in model in four dimensions) are well known the AA was to supply antiprotons to the SPS 2014, the 65 year bell rang in his retirement. physics at the University of Sofi a, he worked among string theorists. After the advent of to allow it to function as a proton–antiproton But for Nick, that was not a reason to stop in its theoretical-physics department before the AdS/CFT correspondence, he worked collider, and Nick became a prominent Nick Chohan’s charisma will be missed work at CERN. He joined the CERN joining the Institute for Nuclear Research and extensively on N 4 S and its conformal member of the AA operations team that scientific information service and provided Nuclear Energy of the Bulgarian Academy of deformations. His last research, on two-point made this possible. His speciality was the When, in 1991, the PS Beam Diagnostics highly welcome help on accelerator physics Sciences in 1992. Stanev defended his PhD correlators in N 2 gauge theories, involved controls aspects of the highly complicated (BD) Group was founded, Nick was the literature, photographic documentation and thesis on conformally invariant quantum-fi eld theories (CFTs), quantum groups, string an international team of colleagues and processes within the AA and for the transfer natural choice to become the section leader articles for Wikipedia. theory models in 1994 under the guidance theory and gauge theories. His work on appeared a month before his premature death. of the antiprotons to the SPS. Simon van for systems integration with the PS controls. Throughout his years at CERN, we all of Ivan Todorov, who has long been a the structure of the conformally invariant Stanev was also a gifted teacher and, der Meer, inventor of stochastic cooling, In 1996, when the high-energy collider knew Nick as friendly and easy-going, distinguished Bulgarian visitor of the CERN three-point correlation of the stress-energy during the last few years, he was a member of on which the AA was based, had written part of CERN’s antiproton programme was always helpful and dedicated in his typical theory department. Since 2004, he had been tensor, published while he was a PhD the INFN theoretical-physics committee. We practically all of the software himself, in his terminated, Nick took on the additional competent manner. We are deeply moved by working at the University of Rome. student in his 20s, is still infl uential today. will miss his wit, humour, critical views and own highly sophisticated style. Nick became responsibility of PS divisional safety officer. his sudden disappearance and shall hold on Stanev had a wide range of scientifi c His pioneering work in the mid 1990s with his friendship. the only one to fully understand it, and later Then, in 2002, he became heavily involved to the memory of the many good moments interests, including super-conformal fi eld his Italian colleagues unveiled the general ● His friends and colleagues. extend it to the Antiproton Collector (AC) in the LHC project. Nick moved to the and years of collaboration and friendship and convert it for integration into the PS Accelerator Technology (AT) Division, that we shared with him. controls system. where he led a team that first tested an ● His friends and colleagues.

Photodetector Modules POWERED BY Satoshi Ozaki 1929–2017 with over light detection flag

World-renowned physicist Satoshi Ozaki, BNL in 1987, accelerating and storing beams who helped design and build accelerators of electrons and positrons at 30 GeV – the for scientific research across two continents highest energy in the world at the time. In including two of the flagship facilities at 1989, Ozaki returned to Brookhaven to head The World’s Most Advanced Brookhaven National Laboratory (BNL), the Relativistic Heavy Ion Collider (RHIC) Digital Pulse Processor died on 22 July aged 88. He was a senior project, which achieved first collisions in scientist emeritus at BNL and a key driver of 2000 and is now the highest energy collider for high-rate Spectroscopy international collaborations in high-energy in the US, with many important discoveries and nuclear physics. about the quark–gluon plasma under its Ozaki joined Brookhaven Lab in 1959 belt. Ozaki was also essential in securing with a master's degree in physics from Japanese support for RHIC-related projects. • Up to 8 channels Osaka University, Japan, and a PhD in Satoshi Ozaki, builder of accelerators and In 2005, Ozaki joined the National of simultaneous physics from the Massachusetts Institute scientific collaborations across continents. Synchrotron Light Source II (NSLS-II) processing of Technology. He worked in a group he project. As the initial head of the NSLS-II Our new range of photon counting modules is available with 25 mm and 30 eventually co-led with Samuel Lindenbaum experimental groups at Brookhaven and accelerator division, Ozaki built up the mm diameter low noise photomultipliers. The latest modules come with an • Over 3 Mcps on experiments at Brookhaven's Alternating collaborating universities. In addition, group and remained with the project as a over light detection output. processed by Gradient Synchrotron (AGS), developing Ozaki led the development of detectors for senior advisor even after formally retiring each channel state-of-the-art electronic detectors and an ISABELLE, the first design for a dual-ring at the end of 2012. He took on the major Our wide range of products cover photomultipliers, light-tight housings, HV online data facility for monitoring detector superconducting collider at Brookhaven. task of procuring the storage-ring magnets, supplies and associated custom built electronics. [email protected] performance by reconstructing subsets of Ozakiʼs work in large-scale detector and attended the formal dedication of the Tel: +1-510-401-5760 ET Enterprises Limited, Riverside Way ADIT Electron Tubes, 300 Crane Street, data in real time. This was the first system development led to an invitation in 1981 completed facility in February 2015. Ozaki Uxbridge, UB8 2YF, UK Sweetwater, Texas 79556, USA www.xia.com of its kind and is now a routine component from KEK to direct the construction of was also involved in the Facility for Rare Phone: +44 (0)1895 200880 Phone: (325) 235 1418 www.et-enterprises.com www.electrontubes.com of data-acquisition systems for complex TRISTAN, the first major high-energy Isotope Beams (FRIB) currently under electronic detectors. The Ozaki–Lindenbaum particle collider in Japan. Under Ozaki, construction at Michigan State University. group also developed a multiparticle this $500 million project was completed on Ozakiʼs accomplishments have been spectrometer at the AGS that served many time and within budget to start operations recognised with numerous prestigious

56 5

CCSep17_Faces&Places.indd 56 02/08/2017 16:13 CCSep17_Faces&Places.indd 57 02/08/2017 16:13 CERNCOURIER www. V o l u m e 5 7 N u m b e r 7 S e p t e m b e r 2 0 1 7