DOCSLIB.ORG

Faces & Places

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

CERN Courier September 2015 Faces & Places C O - OPERATION Unprecedented Sri Lanka strengthens partnership with CERN speed, resolution CERN and Sri Lanka have formed a Ravinatha partnership with the aim of formalizing Aryasinha, and broadening their co-operation. To this left, and Rolf end, CERN’s director-general, Rolf Heuer, Heuer, signing and channel density. and Sri Lanka’s permanent representative the expression at the United Nations in Geneva, Ravinatha of interest. Aryasinha, signed an expression of interest (Image credit: on 25 June 2015. CERN- The agreement incorporates Sri Lanka in PHOTO- CERN’s High School Teachers and Summer 201506-146-7.) Keysight M9709A 8-bit High-Speed Digitizer Student programmes. It also aims at preparing 32 channels, 16 ch. (interleaved) a platform that will allow more scientists from Sri Lanka to participate in CERN’s 1 - 2 GS/s cutting-edge research programmes. Several DC to 300 MHz or DC to 500 MHz scientists from Sri Lankan universities have countries. To allow for broader and more Sri Lanka is the most recent Asian already participated in LHC experiments sustained participation, discussions have country to have strengthened its partnership within frameworks such as sabbatical leave, begun on forming a “cluster” of Sri Lankan with CERN. Others include those as diverse while others have participated as visiting universities and research institutes with the as Bangladesh, Thailand, Indonesia and scientists employed by universities in other aim of joining one of the LHC collaborations. Mongolia. A PPOINTMENT Amber the hardware computing systems for the Amber Boehnlein Boehnlein. high-energy physics programme. Prior to (Image her time at SLAC, she served a three-year takes charge of credit: assignment as the US Department of Energy’s Jefferson Offi ce of High Energy Physics programme Lab.) manager for the US Large Hadron Collider Keysight AXIe high-speed digitizers provide the ideal solution for advanced IT at Jefferson Lab Detector Operations programme. experiments in hydrodynamics, plasma fusion, and particle physics. Build a large Having gained a PhD in physics in 1990 Keysight M9703A 12-bit High-Speed Digitizer number of synchronous acquisition channels in the smallest footprint – simply Amber Boehnlein is the new chief at Florida State University, Boehnlein information offi cer (CIO) at Jefferson was a member of the DØ collaboration at 8 channels, 4 ch. (interleaved) by populating a chassis with your choice of digitizers. With unprecedented Lab. As CIO, she is responsible for the Fermilab from 1991 to 2013, and served as 1 - 2 GS/s or 1.6 - 3.2 GS/s measurement fidelity, advanced IP design and on-board real-time data processing Information Technology (IT) Division as the collaboration’s computing and software DC to 650 MHz or DC up to 2 GHz these digitizers bring new research insight within reach. well as the IT systems, including scientifi c co-ordinator from 1999 to 2006. As a data analysis, high-performance computing, SLAC from 2011. At SLAC she gained staff scientist in the Computing Division IT infrastructure and cyber security. expertise in computational physics relevant at Fermilab, she was responsible for the Boehnlein arrived at Jefferson Lab in to light sources and large-scale databases computing and application support for all June, having led the Computing Division at for astrophysics, as well as overseeing Fermilab-based experiments. A WARDS CERN receives Hermes Innovation award CERN’s leading role in international who supports human ventures. scientifi c co-operation has been recognized ● For more about the event, see www. with a 2015 Hermes Innovation award. The rencontre-innovation.com/. European Institute for Creative Strategies Discover how to simplify your high-speed, and Innovation makes the awards for Frédérick Bordry, centre with the Hermes multichannel acquisition system “humanistic innovation” annually to selected award, Marc Giget, right, and Sylvie organizations and companies that have Borzakian, left, respectively, founder/ www.keysight.com/find/physicsaxie excelled in offering more satisfaction to president and director of the Club de Paris society through their products and services. des Directeurs de l'Innovation and the The awards, which are linked to up to eight European Institute for Creative Strategies themes, are named after Hermes – in Greek and Innovation. (Image credit: M Iesci/ © Keysight Technologies, Inc. 2015 mythology an ingenious and inventive god Hermes Award.) 35 Keysight_HSD_AXle_PE_CERN.indd 1 05/05/2015 18:06 CERNCOURIER www. V OLUME 5 5 N UMBER 7 S EPTEMBER 2 0 1 5 CERN Courier September 2015 CERN Courier September 2015 Faces & Places Faces & Places Silicon Drift Detectors • Solid State Design • Easy to Use Philippe Lebrun Della Negra and Virdee receive IOP recognizes • Low Cost honoured by the awards for leadership work in FAST SDD® cryogenic deep-inelastic Count Rate = >1,000,000 CPS The “founding fathers” of CMS, Michel Resolution Peaking Time community Della Negra of CERN and now Imperial scattering 125 eV FWHM 4 µs College, and Tejinder Virdee of Imperial 130 eV FWHM 1 µs College, have been awarded, respectively, the 140 eV FWHM 0.2 µs CERN’s Philippe Lebrun has received the 2014 André Lagarrigue Prize and the 2015 For distinguished work in particle physics, 160 eV FWHM 0.05 µs prestigious Samuel C Collins Award from Glazebrook Prize. Amanda Cooper-Sarkar of Oxford the Cryogenic Engineering Conference. Della Negra is cited as “a leader University has been awarded the IOP’s Amanda Cooper-Sarkar receives the IOP’s Named after the American physicist with a deep understanding of physics, Chadwick Medal and prize. She receives Chadwick Medal. (Image credit: University 5.9 SDD Spectrum keV who developed the fi rst practical helium in Lagarrigue’s lineage” and for his the award for “her study of deep-inelastic of Oxford.) 55 liquefi ers, the award is given to an individual “outstanding qualities as a builder of scattering [DIS] of leptons on nuclei, which Fe “who has remarkably devoted themselves in experimental devices of great complexity” in has revealed the internal structure of the could be interpreted and extrapolated in eV FWHM Counts 125 the identifi cation and solution of cryogenic his role as a major player in the discoveries at proton”. As a world expert in DIS, her career QCD. She was recently a leading fi gure in 25 mm2 x 500 µm 11.2 µs peaking time 6.4 engineering problems, and has subsequently CERN of the W, Z and Higgs bosons. has covered all forms of lepton–proton preparing the fi nal papers in the area of DIS keV demonstrated their concern for the cryogenic Virdee is cited for “his leadership of Michel Della Negra, right, and Tejinder scattering and the study of QCD to elucidate from the Hadron Electron Ring Accelerator P/B Ratio: 20000/1 community with their dedicated and the CMS experiment at the LHC, where Virdee, recipients, respectively, of the the structure of the nucleon. at DESY, and also plays a leading role in the Energy (keV) unselfi sh professional service and leadership evidence for the Higgs boson was revealed Lagarrigue award and the Glazebrook prize, Cooper-Sarkar has distinguished ATLAS groups at CERN that are making Resolution vs Peaking Time to this community”. after 20 years of research” and for “his in the CMS control room in 2008. (Image herself in devising techniques to distil the new measurements of the proton’s structure 180 25 mm2 Lebrun conducted the R&D on the prominent role in the innovative design and credit: CERN.) experimental data into knowledge that function. 170 superfl uid helium cryogenic system for lengthy construction of the CMS experiment, the LHC. He then led CERN’s Accelerator in particular the scintillating-crystal-based systems, and Virdee on a high-precision 160 Standard SDD Technology Department during the electromagnetic calorimeter, a vital piece of electromagnetic calorimeter, with a view The Royal Society ® construction of the machine, and played a the ‘toolkit’ necessary to discover the Higgs to discovering the Higgs boson through its 150 FAST SDD major role during the construction of the boson”. decay into four muons and two photons. honours particle 140 cryogenic high-fi eld magnets. He received Della Negra started his career at the In 1992, Della Negra was elected the CMS the award during the 2015 Cryogenic Collège de France with a thesis in 1967 on a collaboration’s fi rst spokesperson, with 130 physics Resolution (eV FWHM @ 5.9 keV) bubble-chamber study of proton–antiproton Virdee as his deputy, until 2006. This period Engineering Conference and International 120 0 1 2 3 4 5 Cryogenic Materials Conference, which took annihilations at rest. He then pursued physics saw the conception, R&D and prototyping, Peaking Time (μs) place on 28 June–2 July in Tucson. at the Intersecting Storage Rings at CERN, and much construction of the CMS where he convinced the Split Field Magnet experiment. During this period, Della Negra Peter Higgs, professor emeritus at the Throughput 1,00,0000 collaboration to focus on high-pT physics. and Virdee took many critical and diffi cult University of Edinburgh, has joined the Having there demonstrated the capabilities decisions to ensure the optimal performance ranks of Charles Darwin, Humphry Davy 0.2 μs of a 4π multi-purpose detector, he became and success of the CMS experiment. In 2006, and Albert Einstein by winning the world’s involved in the proposed proton–antiproton Virdee was elected spokesperson for three oldest scientifi c prize, the Royal Society’s 100,000 1 μs collider in the Super Proton Synchrotron, years, during which he oversaw the complex Copley Medal, which was fi rst awarded and made decisive contributions to the task of the completion of construction, in 1731.
Recommended publications
  • NIHEF NATIONAL INSTITUTE for NUCLEAR PHYSICS and HIGH ENERGY PHYSICS (Ij

    NIHEF NATIONAL INSTITUTE for NUCLEAR PHYSICS and HIGH ENERGY PHYSICS (Ij

    NIHEF NATIONAL INSTITUTE FOR NUCLEAR PHYSICS AND HIGH ENERGY PHYSICS (ij TABLE OF CONTENTS (A) Scientific Report of the High-Energy Physics Section (NIKHEF-H) H.I Introduction 5 H.2 Bubble chamber search for v and V interactions in deuterium 8 H.3 European Hybrid System (EHS) 10 H.4 The ACCMOR experiments (NAM, NA32) II H.5 The MARK-J experiment 11 H.6 The PEP t no-photon experiment 13 H.7 Bismuth Germanate Oxide (BGO) 15 H.8 Proton-antiproton experiment UAI 17 H.9 Proton anti-proton elastic scattering and total cross-section at the CERN pp Collider (UA4) 18 H.10 The SING-experlment at LEAR 19 H.I1 Electron-positron interactions In the bottonium field (bb-spectroscopy) 20 H.12 DELPHI 21 H.I 3 The LEP3 experiment 22 H.I 4 Instrumentation group 25 H.15 The theory group 26 H.I6 HERA 27 H.I 7 The Computer Group 28 H.I 8 Electronics Department 29 H.I9 Mechanical Workshop 30 H.20 Mechanical Design Office 32 IB) Scientific Report of the Nuclear Physics Section (NIKHEF-K) Preface 35 K1 Electron scattering 3 7 K 1. 1 Introduction 37 K1.2 Single-arm electron-scattering experiments 37 K 1.2.1 Nuclear structure and models 37 Kl.2.2 Magnetic scattering 41 K1.2.3 High-spin st.-etched configurations 44 K1.2.4 Dispersive effects 44 K1.3 Coincidence (e,e'X) experiments 46 K1.3.1 The two-body break up of ó He studied with the He(e^e'p) and .
  • The Moedal Experiment at the LHC. Searching Beyond the Standard

    The Moedal Experiment at the LHC. Searching Beyond the Standard

    126 EPJ Web of Conferences , 02024 (2016) DOI: 10.1051/epjconf/201612602024 ICNFP 2015 The MoEDAL experiment at the LHC Searching beyond the standard model James L. Pinfold (for the MoEDAL Collaboration)1,a 1 University of Alberta, Physics Department, Edmonton, Alberta T6G 0V1, Canada Abstract. MoEDAL is a pioneering experiment designed to search for highly ionizing avatars of new physics such as magnetic monopoles or massive (pseudo-)stable charged particles. Its groundbreaking physics program defines a number of scenarios that yield potentially revolutionary insights into such foundational questions as: are there extra dimensions or new symmetries; what is the mechanism for the generation of mass; does magnetic charge exist; what is the nature of dark matter; and, how did the big-bang develop. MoEDAL’s purpose is to meet such far-reaching challenges at the frontier of the field. The innovative MoEDAL detector employs unconventional methodologies tuned to the prospect of discovery physics. The largely passive MoEDAL detector, deployed at Point 8 on the LHC ring, has a dual nature. First, it acts like a giant camera, comprised of nuclear track detectors - analyzed offline by ultra fast scanning microscopes - sensitive only to new physics. Second, it is uniquely able to trap the particle messengers of physics beyond the Standard Model for further study. MoEDAL’s radiation environment is monitored by a state-of-the-art real-time TimePix pixel detector array. A new MoEDAL sub-detector to extend MoEDAL’s reach to millicharged, minimally ionizing, particles (MMIPs) is under study Finally we shall describe the next step for MoEDAL called Cosmic MoEDAL, where we define a very large high altitude array to take the search for highly ionizing avatars of new physics to higher masses that are available from the cosmos.
  • Jul/Aug 2013

    Jul/Aug 2013

    I NTERNATIONAL J OURNAL OF H IGH -E NERGY P HYSICS CERNCOURIER WELCOME V OLUME 5 3 N UMBER 6 J ULY /A UGUST 2 0 1 3 CERN Courier – digital edition Welcome to the digital edition of the July/August 2013 issue of CERN Courier. This “double issue” provides plenty to read during what is for many people the holiday season. The feature articles illustrate well the breadth of modern IceCube brings particle physics – from the Standard Model, which is still being tested in the analysis of data from Fermilab’s Tevatron, to the tantalizing hints of news from the deep extraterrestrial neutrinos from the IceCube Observatory at the South Pole. A connection of a different kind between space and particle physics emerges in the interview with the astronaut who started his postgraduate life at CERN, while connections between particle physics and everyday life come into focus in the application of particle detectors to the diagnosis of breast cancer. And if this is not enough, take a look at Summer Bookshelf, with its selection of suggestions for more relaxed reading. To sign up to the new issue alert, please visit: http://cerncourier.com/cws/sign-up. To subscribe to the magazine, the e-mail new-issue alert, please visit: http://cerncourier.com/cws/how-to-subscribe. ISOLDE OUTREACH TEVATRON From new magic LHC tourist trail to the rarest of gets off to a LEGACY EDITOR: CHRISTINE SUTTON, CERN elements great start Results continue DIGITAL EDITION CREATED BY JESSE KARJALAINEN/IOP PUBLISHING, UK p6 p43 to excite p17 CERNCOURIER www.
  • EPS-HEP 2017 Report of Contributions

    EPS-HEP 2017 Report of Contributions

    EPS-HEP 2017 Report of Contributions https://indico.cern.ch/e/epshep2017 EPS-HEP 2017 / Report of Contributions Theory overview on FCNC B-decays Contribution ID: 10 Type: Parallel Talk Theory overview on FCNC B-decays Thursday, 6 July 2017 09:00 (30 minutes) LHCb experiment at CERN has recently reported a set of measurements on lepton flavour univer- sality in b to s transitions showing a departure from the Standard Model predictions. I will review the main ideas recently put forward to make sense out of these intriguing hints. Focusing on the new physics explanation, I will discuss the correlated signals expected in other low- and high- energy observables, that could help clarify the mysterious signal. Experimental Collaboration Primary author: GRELJO, Admir (University of Zurich) Presenter: GRELJO, Admir (University of Zurich) Session Classification: Flavour and symmetries Track Classification: Flavour Physics and Fundamental Symmetries October 6, 2021 Page 1 EPS-HEP 2017 / Report of Contributions Charm Quark Mass with Calibrate … Contribution ID: 11 Type: Parallel Talk Charm Quark Mass with Calibrated Uncertainty Friday, 7 July 2017 12:35 (13 minutes) We determine the charm quark mass mc(mc) from QCD sum rules of moments of the vector cur- rent correlator calculated in perturbative QCD. Only experimental data for the charm resonances below the continuum threshold are needed in our approach, while the continuum contribution is determined by requiring self-consistency between various sum rules, including the one for the ze- roth moment. Existing data from the continuum region can then be used to bound the theoretical error. Our result is mc(mc) = 1272 ± 8 MeV for αs(MZ ) = 0:1182.
  • Doctorat Honoris Causa

    Doctorat Honoris Causa

    DOCTORAT HONORIS CAUSA Acord núm. 204/2007 del Consell de Govern, pel qual s’aprova la concessió del doctorat Honoris Causa al Professor Sir Michael Atiyah. Document aprovat per la Comissió Permanent del dia 3/12/2007. Document aprovat pel Consell de Govern del dia 17/12/2007. DOCUMENT CG 14/12 2007 Secretaria General Desembre de 2007 PROPOSTA D’ACORD DEL CONSELL DE GOVERN PER A CONCEDIR EL DOCTORAT HONORIS CAUSA PER LA UNIVERSITAT POLITÈCNICA DE CATALUNYA, AL PROFESSOR SIR MICHAEL ATIYAH ANTECEDENTS: 1. El professor Sir Michael Atiyah ha estat guardonat, entre d’altres distincions, amb la Medalla Fields (1966), atorgada per la Unió Matemàtica Internacional, i el Premi Abel (2004), atorgat per l’Acadèmia de Ciències de Noruega, ambdues reconegudes com un Premi Nobel de les Matemàtiques. També ha estat un dels impulsors més decisius de la Societat Matemàtica Europea. 2. En relació amb Catalunya i Barcelona, i més concretament, amb la UPC, el professor Sir Michael Atiyah ha estat president del Comitè Científic del 3r Congrés Europeu de Matemàtiques celebrat a Barcelona l’any 2000. 3. El prestigi internacional del professor Sir Michael Atiyah el fa un candidat idoni com a primer doctor honoris causa per la UPC en un àrea en la qual la nostra Universitat compta amb una comunitat nombrosa i amb un gran prestigi i reconeixement internacionals. 4. El rector ha rebut una proposta formal per a investir el professor Sir Michael Atiyah com a doctor honoris causa per la Universitat Politècnica de Catalunya, signada pel degà de la Facultat de Matemàtiques i Estadística, el director del departament de Matemàtica Aplicada I, el director del departament de Matemàtica Aplicada II, el director del departament de Matemàtica Aplicada III, el director del departament de Matemàtica Aplicada IV, i el director del departament d’Estadística i Investigació Operativa.
  • The Discovery of the Higgs Boson at the LHC

    The Discovery of the Higgs Boson at the LHC

    Chapter 6 The Discovery of the Higgs Boson at the LHC Peter Jenni and Tejinder S. Virdee 6.1 Introduction and the Standard Model The standard model of particle physics (SM) is a theory that is based upon principles of great beauty and simplicity. The theory comprises the building blocks of visible matter, the fundamental fermions: quarks and leptons, and the fundamental bosons that mediate three of the four fundamental interactions; photons for electromag- netism, the W and Z bosons for the weak interaction and gluons for the strong interaction (Fig. 6.1). The SM provides a very successful description of the visible universe and has been verified in many experiments to a very high precision. It has an enormous range of applicability and validity. So far no significant deviations have been observed experimentally. The possibility of installing a proton-proton accelerator in the LEP tunnel, after the e+e− programme, was being discussed in the 1980’s. At the time there were many profound open questions in particle physics, and several are still present. In simple terms these are: what is the origin of mass i.e. how do fundamental particles acquire mass, and why do they have the masses that they have? Why is there more matter than anti-matter? What is dark matter? What is the path towards unification of all forces? Do we live in a world with more space-time dimensions than the familiar four? The LHC [1, 2] was conceived to address or shed light on these questions. P. Jenni CERN, Geneva, Switzerland Albert-Ludwigs University Freiburg, Freiburg im Breisgau, Germany T.
  • Upgrade of the Global Muon Trigger for the Compact Muon Solenoid Experiment at CERN”

    Upgrade of the Global Muon Trigger for the Compact Muon Solenoid Experiment at CERN”

    DISSERTATION/DOCTORAL THESIS Titel der Dissertation/Title of the Doctoral Thesis “Upgrade of the Global Muon Trigger for the Compact Muon Solenoid experiment at CERN” verfasst von/submitted by Mag. Dinyar Sebastian Rabady angestrebter akademischer Grad/in partial fulfilment of the requirements for the degree of Doktor der Naturwissenschaften (Dr. rer. nat.) Wien, im Jänner 2018/Vienna, in January 2018 Studienkennzahl lt. Studienblatt/ A 796 605 411 degree programme code as it appears on the student record sheet: Studienrichtung lt. Studienblatt/ Physik field of study as it appears onthe student record sheet: Betreut von/Supervisor: Dipl.-Ing. Dr. Claudia-Elisabeth Wulz Hon.-Prof. Dipl.-Phys. Dr. Eberhard Widmann Für meinen Großvater. Abstract The Large Hadron Collider is a large particle accelerator at the CERN research labo- ratory, designed to provide particle physics experiments with collisions at unprece- dented centre-of-mass energies. For its second running period both the number of colliding particles and their collision energy were increased. To cope with these more challenging conditions and maintain the excellent performance seen during the first running period, the Level-1 trigger of the Compact Muon Solenoid experiment — a so- phisticated electronics system designed to filter events in real-time — was upgraded. This upgrade consisted of the complete replacement of the trigger electronics andafull redesign of the system’s architecture. While the calorimeter trigger path now follows a time-multiplexed processing model where the entire trigger data for a collision are received by a single processing board, the muon trigger path was split into regional track finding systems where each newly introduced track finder receives data from all three muon subdetectors for a certain geometric detector slice and reconstructs fully formed muon tracks from this.
  • Sub Atomic Particles and Phy 009 Sub Atomic Particles and Developments in Cern Developments in Cern

    Sub Atomic Particles and Phy 009 Sub Atomic Particles and Developments in Cern Developments in Cern

    1) Mahantesh L Chikkadesai 2) Ramakrishna R Pujari [email protected] [email protected] Mobile no: +919480780580 Mobile no: +917411812551 Phy 009 Sub atomic particles and Phy 009 Sub atomic particles and developments in cern developments in cern Electrical and Electronics Electrical and Electronics KLS’s Vishwanathrao deshpande rural KLS’s Vishwanathrao deshpande rural institute of technology institute of technology Haliyal, Uttar Kannada Haliyal, Uttar Kannada SUB ATOMIC PARTICLES AND DEVELOPMENTS IN CERN Abstract-This paper reviews past and present cosmic rays. Anderson discovered their existence; developments of sub atomic particles in CERN. It High-energy subato mic particles in the form gives the information of sub atomic particles and of cosmic rays continually rain down on the Earth’s deals with basic concepts of particle physics, atmosphere from outer space. classification and characteristics of them. Sub atomic More-unusual subatomic particles —such as particles also called elementary particle, any of various self-contained units of matter or energy that the positron, the antimatter counterpart of the are the fundamental constituents of all matter. All of electron—have been detected and characterized the known matter in the universe today is made up of in cosmic-ray interactions in the Earth’s elementary particles (quarks and leptons), held atmosphere. together by fundamental forces which are Quarks and electrons are some of the elementary represente d by the exchange of particles known as particles we study at CERN and in other gauge bosons. Standard model is the theory that laboratories. But physicists have found more of describes the role of these fundamental particles and these elementary particles in various experiments.
  • Department of Physics Review

    Department of Physics Review

    The Blackett Laboratory Department of Physics Review Faculty of Natural Sciences 2008/09 Contents Preface from the Head of Department 2 Undergraduate Teaching 54 Academic Staff group photograph 9 Postgraduate Studies 59 General Departmental Information 10 PhD degrees awarded (by research group) 61 Research Groups 11 Research Grants Grants obtained by research group 64 Astrophysics 12 Technical Development, Intellectual Property 69 and Commercial Interactions (by research group) Condensed Matter Theory 17 Academic Staff 72 Experimental Solid State 20 Administrative and Support Staff 76 High Energy Physics 25 Optics - Laser Consortium 30 Optics - Photonics 33 Optics - Quantum Optics and Laser Science 41 Plasma Physics 38 Space and Atmospheric Physics 45 Theoretical Physics 49 Front cover: Laser probing images of jet propagating in ambient plasma and a density map from a 3D simulation of a nested, stainless steel, wire array experiment - see Plamsa Physics group page 38. 1 Preface from the Heads of Department During 2008 much of the headline were invited by, Ian Pearson MP, the within the IOP Juno code of practice grabbing news focused on ‘big science’ Minister of State for Science and (available to download at with serious financial problems at the Innovation, to initiate a broad ranging www.ioppublishing.com/activity/diver Science and Technology Facilities review of physics research under sity/Gender/Juno_code_of_practice/ Council (STFC) (we note that some the chairmanship of Professor Bill page_31619.html). As noted in the 40% of the Department’s research Wakeham (Vice-Chancellor of IOP document, “The code … sets expenditure is STFC derived) and Southampton University). The stated out practical ideas for actions that the start-up of the Large Hadron purpose of the review was to examine departments can take to address the Collider at CERN.
  • Die Entdeckung Des Higgs-Teilchens Am CERN

    Die Entdeckung Des Higgs-Teilchens Am CERN

    Die Entdeckung des Higgs-Teilchens am CERN Prof. Karl Jakobs Physikalisches Institut Universität Freiburg From the editorial: “The top Breakthrough of the Year – the discovery of the Higgs boson – was an unusually easy choice, representing both a triumph of the human intellect and the culmination of decades of work by many thousands of physicists and engineers.” Nobel-Preis für Physik 2013: François Englert und Peter Higgs “ … for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of sub-atomic particles, and which recently was confirmed through the discovery of the predicted fundamental particle, by the ATLAS and CMS experiments at CERN’s Large Hadron Collider.” EPS Prize 2013: The 2013 High Energy and Particle Physics Prize, for an outstanding contribution to High Energy Physics, is awarded to the ATLAS and CMS collaborations, “for the discovery of a Higgs boson, as predicted by the Brout-Englert-Higgs mechanism”, and to Michel Della Negra, Peter Jenni, and Tejinder Virdee, “for their pioneering and outstanding leadership rôles in the making of the ATLAS and CMS experiments”. Physik-Journal Februar 2015: “.. Obwohl in diesen großen Kollaborationen eine große Zahl von Forschern mitarbeitet, ist es möglich, einzelne Forscherpersönlichkeiten herauszuheben, deren Ideen und Arbeit für den Erfolg des Experiments von besonderer Bedeutung waren. Zu diesen gehört neben den Sprechern der Experimente Karl Jakobs.” The Standard Model of Particle Physics γ mW ≈ 80.4 GeV mZ ≈ 91.2 GeV (i) Matter particles: quarks and leptons (spin ½, fermions) (ii) Four fundamental forces: described by quantum field theories (except gravitation) à massless spin-1 gauge bosons (iii) The Higgs field à scalar field, spin-0 Higgs boson The Brout-Englert-Higgs Mechanism F.
  • PARTICLE PHYSICS 2013ª Highlights and Annual Report 2 | Contents Contentsª

    PARTICLE PHYSICS 2013ª Highlights and Annual Report 2 | Contents Contentsª

    ª PARTICLE PHYSICS Deutsches Elektronen-Synchrotron A Research Centre of the Helmholtz Association PARTICLE PHYSICS 2013 2013ª The Helmholtz Association is a community grand challenges faced by society, science and of 18 scientific-technical and biological- industry. Helmholtz Centres perform top-class Highlights medical research centres. These centres have research in strategic programmes in six core been commissioned with pursuing long-term fields: Energy, Earth and Environment, Health, and Annual Report research goals on behalf of the state and Key Technologies, Structure of Matter, Aero- society. The Association strives to gain insights nautics, Space and Transport. and knowledge so that it can help to preserve and improve the foundations of human life. It does this by identifying and working on the www.helmholtz.de Accelerators | Photon Science | Particle Physics Deutsches Elektronen-Synchrotron A Research Centre of the Helmholtz Association Imprint Publishing and contact Editing Deutsches Elektronen-Synchrotron DESY Ilka Flegel, Manfred Fleischer, Michael Medinnis, A Research Centre of the Helmholtz Association Thomas Schörner-Sadenius Hamburg location: Layout Notkestr. 85, 22607 Hamburg, Germany Diana Schröder Tel.: +49 40 8998-0, Fax: +49 40 8998-3282 Production [email protected] Monika Illenseer Zeuthen location: Printing Platanenallee 6, 15738 Zeuthen, Germany Druckerei Heigener Europrint, Hamburg Tel.: +49 33762 7-70, Fax: +49 33762 7-7413 [email protected] Editorial deadline 28 February 2014 www.desy.de ISBN 978-3-935702-87-4 Editorial note doi: 10.3204/DESY_AR_ET2013 The authors of the individual scientific contributions published in this report are fully responsible for the contents. Cover A possible design of CTA, the Cherenkov Telescope Array.
  • 2014André Lagarrigue Prize

    2014André Lagarrigue Prize

    2014 André Lagarrigue Prize The international jury1 of the André Lagarrigue prize, meeting under the chairmanship of Jacques Martino, director of IN2P3, has awarded the 2014 prize to Michel Della Negra, physicist emeritus of the CERN Physics Department, presently CMS emeritus at Imperial College, London. The award, established in 2005 under the aegis of the French Physical Society, pays tribute to Professor André Lagarrigue, director of the Laboratory of Linear Accelerator (LAL, Orsay) from 1969 to 1975, who had a major role in the discovery of neutral weak interactions with the Gargamelle bubble chamber at CERN, thus establishing the validity of the electroweak theory. The award, co-funded by the CEA, CERN, Ecole Polytechnique, IN2P3-CNRS, LAL and Université Paris-Sud, is awarded every two years. Born leader, with deep understanding of physics, in direct André Lagarrigue’s lineage, Michel Della Negra has shown outstanding qualities as a builder of experimental devices of great complexity. He is one of the major players in two fundamental discoveries: the W and Z bosons, carriers of the weak interaction with the UA1 SppS, and the Higgs boson with CMS at the LHC. Born in 1942, a graduate of the Ecole Polytechnique, Paris, he begins his career at the Laboratory of Nuclear Physics of the College de France. He defends his thesis in 1967 on the study of proton-antiproton annihilations at rest, using bubble chamber photographs. He is recruited by the CNRS in 1968. During a postdoctoral stay at SLAC (1970-1972), he joins the first deep inelastic scattering experiment using a 17 GeV muon beam interacting on the protons of a rapid cycling bubble chamber, and he is given the responsibility of the muon system.