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2009 Fiscal Year Final Research Report

Discovery of Higgs Particles by using the ATLAS Detector at LHC

Research Project

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Project/Area Number 16081204
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionThe University of Tokyo

Principal Investigator

SAKAMOTO Hiroshi  The University of Tokyo, 素粒子物理国際研究センター, 教授 (80178574)

Co-Investigator(Kenkyū-buntansha) KOBAYASHI Tomio  東京大学, 素粒子物理国際研究センター, 教授 (50126059)
MASHIMO Tetsuro  東京大学, 素粒子物理国際研究センター, 准教授 (60181640)
ASAI Shoji  東京大学, 大学院・理学系研究科, 准教授 (60282505)
UEDA Ikuo  東京大学, 素粒子物理国際研究センター, 助教 (70292836)
KANAYA Naoko  東京大学, 素粒子物理国際研究センター, 助教 (80418780)
Co-Investigator(Renkei-kenkyūsha) YOSHIDA Hajime  鳴門教育大学, 学校教育学部, 教授 (10111775)
TANAKA Satoshi  立命館大学, 情報理工学部, 教授 (60251980)
Project Period (FY) 2004 – 2009
Keywordsヒッグス粒子 / 衝突型加速器 / 陽子陽子衝突 / 最高エネルギー / コンピューティンググリッド
Research Abstract

Existence of Higgs particles was predicted by the standard model but they have not yet been discovered by previous experiments. The ATLAS experiment at the LHC accelerator constructed at CERN near Geneva, is aiming the discovery. The experimental data taken by ATLAS are analyzed by using a computing grid, which is globally deployed for the first time in the world. Analysis infrastructure has been developed using the ATLAS regional analysis center system installed at the University of Tokyo. In order to improve the discovery potential of the Higgs particles, a new analysis algorithm has been established, which can find them with 10 times higher sensitivity. Now the ATLAS experiment is accumulating data intensively and the discovery is expected in near future.

  • Research Products

    (24 results)

All 2011 2010 2009 2008 2007 2005 Other

All Journal Article (15 results) (of which Peer Reviewed: 12 results) Presentation (7 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Measurement of the inclusive isolated prompt photon cross section in pp collisions at √<s>=7 TeV with the ATLAS detector2011

    • Author(s)
      G.Aad, et al., H.Sakamoto, T.Kobayashi, T.Mashimo, S.Asai, I.Ueda, N.Kanaya
    • Journal Title

      Physical Review D 83

      Pages: 052005

  • [Journal Article] Measurement of the production cross section for W-bosons in association with jets in pp collisions at sqrt(s)=7TeV with the ATLAS detector2011

    • Author(s)
      G.Aad, et al., H.Sakamoto, T.Kobayashi, T.Mashimo, S.Asai, I.Ueda, N.Kanaya
    • Journal Title

      Physics Letters B Volume 698, Issue 5

      Pages: 325-345

  • [Journal Article] Commissioning of the ATLAS Muon Spectrometer with cosmic rays The ATLAS Collaboration2010

    • Author(s)
      G.Aad, et al., H.Sakamoto, T.Kobayashi, T.Mashimo, S.Asai, I.Ueda, N.Kanaya
    • Journal Title

      The European Physical Journal C-Particles and Fields 70, No.3

      Pages: 875-916

  • [Journal Article] Search for New Particles in Two-Jet Final States in 7 TeV Proton-Proton Collisions with the ATLAS Detector at the LHC2010

    • Author(s)
      G.Aad, et al., H.Sakamoto, T.Kobayashi, T.Mashimo, S.Asai, I.Ueda, N.Kanaya
    • Journal Title

      Phys.Rev.Lett. 105

      Pages: 161801

    • Peer Reviewed
  • [Journal Article] Measurement of the W→ν and Z/γ*→μ production cross sections in proton- proton collisions at sqrt(s)=7TeV with the ATLAS detector2010

    • Author(s)
      G.Aad, et al., H.Sakamoto, T.Kobayashi, T.Mashimo, S.Asai, I.Ueda, N.Kanaya
    • Journal Title

      Journal of High Energy Physics 2010, No.12

      Pages: 1-65

    • Peer Reviewed
  • [Journal Article] Measuring lifetimes of long-lived charged massive particles stopped in LHC detector2009

    • Author(s)
      S.Asai, K.Hamaguchi, S.Shirai
    • Journal Title

      Physical Review Letters 103

      Pages: 141803

    • Peer Reviewed
  • [Journal Article] Study of the ATLAS MDT spectrometer using high energy CERN combined test beam data.2009

    • Author(s)
      C.Adorisio, et al., H.Sakamoto
    • Journal Title

      Nucl.Instrum.Meth. A598

      Pages: 400-415

    • Peer Reviewed
  • [Journal Article] The ATLAS Experiment at the CERN Large Hadron Collider2008

    • Author(s)
      G.Aad, et al., H.Sakamoto, S.Asai, T.Kobayashi、T.Mashimo, I.Ueda, N.kanaya
    • Journal Title

      Journal of Instrumentation 3

      Pages: S08003

    • Peer Reviewed
  • [Journal Article] Test of Anomaly Mediation at the LHC2008

    • Author(s)
      S.Asai, T.Moroi, T.T.Yanagida
    • Journal Title

      Physics Letters B664

      Pages: 185-189

    • Peer Reviewed
  • [Journal Article] LHC計画:最高エネルギーのビームで最極微の世界を探る2007

    • Author(s)
      近藤敬比古, 小林富雄
    • Journal Title

      日本物理学会誌 62

      Pages: 907-915

    • Peer Reviewed
  • [Journal Article] ヒッグス粒子と新粒子をとらえる2007

    • Author(s)
      浅井祥仁
    • Journal Title

      日本物理学会誌 62

      Pages: 922-929

    • Peer Reviewed
  • [Journal Article] LHCが開拓した技術-データ処理とソフトウエアー2007

    • Author(s)
      坂本宏, 尼子勝哉
    • Journal Title

      日本物理学会誌 62

      Pages: 942-948

    • Peer Reviewed
  • [Journal Article] Data grid deployment for high energy physics in Japan2007

    • Author(s)
      H.Sakamoto
    • Journal Title

      Computer Physics Communications 177

      Pages: 239-242

    • Peer Reviewed
  • [Journal Article] The ATLAS Level-1 Trigger: Status of the System and First Results from Cosmic-Ray Data2007

    • Author(s)
      G.Aielli, et al., H.Sakamoto, T.Kobayashi, N.kanaya
    • Journal Title

      Nucl.Instr.Meth. A581

      Pages: 476-481

    • Peer Reviewed
  • [Journal Article] Study of black holes with the ATLAS detector at the LHC2005

    • Author(s)
      J.Tanaka, T.Yamamura, S.Asai, J.Kanzaki
    • Journal Title

      European Physical Journal C 41

      Pages: 19-33

    • Peer Reviewed
  • [Presentation] Searches with isolated leptons, missing transverse energy, and in multi-lepton final states2010

    • Author(s)
      Y.Kataoka
    • Organizer
      18th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY10)
    • Place of Presentation
      Bonn
    • Year and Date
      2010-08-23
  • [Presentation] Early b physics at ATLAS2010

    • Author(s)
      S.Oda
    • Organizer
      The Hadron Collider Physics Symposium 2010
    • Place of Presentation
      Toronto
    • Year and Date
      2010-08-12
  • [Presentation] ATLAS Higgs Sensitivity for 1/fb of Data at the LHC running at 7 TeV2010

    • Author(s)
      T.Masubuchi
    • Organizer
      The 35^<th> International Conference on High Energy Physics
    • Place of Presentation
      Paris
    • Year and Date
      2010-07-23
  • [Presentation] The commissioning status and results of ATLAS level1 endcap muon trigger system2008

    • Author(s)
      Y.Okumura
    • Organizer
      Topical Workshop on Electronics for Particle Physics
    • Place of Presentation
      Naxos, Greece
    • Year and Date
      2008-09-15
  • [Presentation] ATLASコンピューティングとグリッド2008

    • Author(s)
      上田郁夫
    • Organizer
      日本物理学会第63回年次大会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-24
  • [Presentation] Missing ET Performance and Impact on SUSY Physics2007

    • Author(s)
      N.Kanaya
    • Organizer
      SUSY 2010's
    • Place of Presentation
      Sapporo
    • Year and Date
      2007-06-21
  • [Presentation] Status and Outlook of LHC2007

    • Author(s)
      T.Kobayashi
    • Organizer
      International Workshop on the Interconnection between Particle Physics and Cosmology, PPC2007
    • Place of Presentation
      TAMU, Texas, USA
    • Year and Date
      2007-05-15
  • [Book] Expected Performance of the ATLAS Experiment-Detector, Trigger and Physics2009

    • Author(s)
      G.Aad, et al.
    • Total Pages
      828
    • Publisher
      CERN(ISBN : 978-92-9083-325-1)
  • [Remarks] ホームページ等

    • URL

      http://atlas.kek.jp/

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Published: 2012-02-13   Modified: 2016-04-21  

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