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2012 Fiscal Year Final Research Report

Development of automatic amplitude generation program for new physics discovery at the LHC

Research Project

  • PDF
Project/Area Number 20340064
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

HAGIWARA Kaoru  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 教授 (50189461)

Co-Investigator(Kenkyū-buntansha) KANZAKI Junichi  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 講師 (60169787)
Project Period (FY) 2008 – 2012
Keywords素粒子物理学 / 素粒子論 / 素粒子実験 / LHC / シミュレーション / GPU / 国際情報交換(欧州)
Research Abstract

In this study we developed physics analysis tools that contribute to the discovery of new physics at the LHC of CERN. By the use of graphics processing unit (GPU) we have achieved the improvement of the performance of the event generation program by two orders of magnitude. It makes possible more precise estimate of backgrounds from the standard model processes to new physics. Parton shower program currently under development is expected to improve the accuracy of the simulation further.

  • Research Products

    (27 results)

All 2013 2012 2011 2010 2009 2008 Other

All Journal Article (19 results) (of which Peer Reviewed: 19 results) Presentation (7 results) Remarks (1 results)

  • [Journal Article] Null radiation zone at the LHC2013

    • Author(s)
      K. Hagiwara
    • Journal Title

      Phys.Rev

      Volume: D87 Pages: 14021

    • DOI

      DOI:10.1103/PhysRevD.87.014021

    • Peer Reviewed
  • [Journal Article] On the W+4jets background to the top quark asymmetry Kaoru Hagiwara at the Tevatron2013

    • Author(s)
      K. Hagiwara
    • Journal Title

      Nucl.Phys.Proc.Suppl

      Volume: 234 Pages: 93-96

    • DOI

      DOI:10.1016/j.nuclphysbps.2012.11.022

    • Peer Reviewed
  • [Journal Article] Diquark contribution to Top quark charge asymmetry at the Tevatron and LHC2013

    • Author(s)
      K. Hagiwara
    • Journal Title

      JHEP

      Volume: 1302 Pages: 100

    • DOI

      DOI:10.1007/JHEP02(2013)100

    • Peer Reviewed
  • [Journal Article] Properties of 125 GeV Higgs boson in non-decoupling MSSM scenarios2012

    • Author(s)
      K. Hagiwara
    • Journal Title

      JHEP

      Volume: 1210 Pages: 002

    • DOI

      DOI:10.1007/JHEP10(2012)002

    • Peer Reviewed
  • [Journal Article] The MSSM confronts precision electroweak data and the muon g-22011

    • Author(s)
      G.C. Cho, K.Hagiwara, Y.Matsumoto, D.Nomura
    • Journal Title

      JHEP

      Volume: 1111 Pages: 068

    • DOI

      DOI:10.1007/JHEP11(2011)068

    • Peer Reviewed
  • [Journal Article] g-2 of the muon and alpha at mZ re-evaluated using new precise data2011

    • Author(s)
      K. Hagiwara, R. Liao, A.D. Martin, D.Nomura, T. Teubner
    • Journal Title

      J.Phys

      Volume: G38 Pages: 085003

    • DOI

      DOI:10.1088/0954-3899/38/8/085003

    • Peer Reviewed
  • [Journal Article] Simulating graviton production at hadron colliders2011

    • Author(s)
      P. de Aquino, K. Hagiwara, Q. Li, F.Maltoni
    • Journal Title

      JHEP

      Volume: 1106 Pages: 132

    • DOI

      DOI:10.1007/JHEP06(2011)132

    • Peer Reviewed
  • [Journal Article] Monte Carlo integration on GPU2011

    • Author(s)
      J.Kanzaki
    • Journal Title

      Eur.Phys.J.

      Volume: C71 Pages: 1559

    • DOI

      DOI:10.1140/epjc/s10052-011-1559-8http://madgraph.kek.jp/KEK/

    • Peer Reviewed
  • [Journal Article] HELAS and MadGraph with spin-3/2 particles2011

    • Author(s)
      K. Hagiwara, K. Mawatari, Y. Takaesu
    • Journal Title

      Eur.Phys.J

      Volume: C71 Pages: 1529

    • DOI

      DOI:10.1140/epjc/s10052-010-1529-6http://madgraph.kek.jp/KEK/

    • Peer Reviewed
  • [Journal Article] Calculation of HELAS amplitudes for QCD processes using graphics processing unit (GPU)2010

    • Author(s)
      K. Hagiwara, J. Kanzaki, N. Okamura, D. Rainwater, T. Stelzer
    • Journal Title

      Eur.Phys.J

      Volume: C70 Pages: 513-524

    • DOI

      DOI:10.1140/epjc/s10052-010-1465-5

    • Peer Reviewed
  • [Journal Article] Fast calculation of HELAS amplitudes using graphics processing unit (GPU)2010

    • Author(s)
      K. Hagiwara, J. Kanzaki, N. Okamura, D. Rainwater, T. Stelzer
    • Journal Title

      Eur.Phys.J

      Volume: C66 Pages: 477-492

    • DOI

      DOI:10.1140/epjc/s10052-010-1276-8

    • Peer Reviewed
  • [Journal Article] Bound-state effects on gluino-pair production at hadron colliders2009

    • Author(s)
      K.Hagiwara, H.Yokoya
    • Journal Title

      JHEP

      Volume: 0910 Pages: 049

    • DOI

      DOI:10.1088/1126-6708/2009/10/049

    • Peer Reviewed
  • [Journal Article] Jet angular correlation in vector-boson fusion processes at hadron colliders2009

    • Author(s)
      K.Hagiwara, Q.Li, K.Mawatar
    • Journal Title

      JHEP

      Volume: 0907 Pages: 101

    • DOI

      DOI:10.1088/1126-6708/2009/07/101

    • Peer Reviewed
  • [Journal Article] Measuring Higgs-Vector boson Couplings at Linear e+e- Collider2008

    • Author(s)
      S.Dutta, K.Hagiwara, Y.Matsumoto
    • Journal Title

      Phys.Rev

      Volume: D78 Pages: 115016

    • DOI

      DOI:10.1103/PhysRevD.78.115016

    • Peer Reviewed
  • [Journal Article] HELAS and MadGraph/MadEvent with spin-2 particles2008

    • Author(s)
      K. Hagiwara, Q. Li, J. Kanzaki, K.Mawatari
    • Journal Title

      Eur.Phys.J

      Volume: C56 Pages: 435-447

    • DOI

      DOI:10.1140/epjc/s10052-008-0663-xhttp://madgraph.kek.jp/KEK/

    • Peer Reviewed
  • [Journal Article] Bound-state Effects on Top Quark Production at Hadron Colliders2008

    • Author(s)
      K.Hagiwara, Y.Sumino, H.Yokoya
    • Journal Title

      Phys.Lett

      Volume: B666 Pages: 71-76

    • DOI

      DOI:10.1016/j.physletb.2008.07.006

    • Peer Reviewed
  • [Journal Article] Mixed QCD-electroweak contributions to Higgs-plus-dijet production at the LHC2008

    • Author(s)
      A.Bredenstein, K.Hagiwara, B.Jager
    • Journal Title

      Phys.Rev

      Volume: D77 Pages: 073004

    • DOI

      DOI:10.1103/PhysRevD.77.073004

    • Peer Reviewed
  • [Journal Article] Graviton production with 2 jets at the LHC in large extra dimensions2008

    • Author(s)
      K. Hagiwara, P. Konar, Q. Li, K.Mawatari, D.Zeppenfeld
    • Journal Title

      JHEP

      Volume: 0804 Pages: 019

    • DOI

      DOI:10.1088/1126-6708/2008/04/019

    • Peer Reviewed
  • [Journal Article] Constraints on the electroweak chiral Lagrangian from the precision data2008

    • Author(s)
      19 S. Dutta, K. Hagiwara, Q. S. Yan, K.Yoshida
    • Journal Title

      Nucl.Phys

      Volume: B790 Pages: 111-137

    • DOI

      DOI:10.1016/j.nuclphysb.2007.08.017

    • Peer Reviewed
  • [Presentation] Coherent Branching Algorithm に基づくパートンシャワープログラムの開発2013

    • Author(s)
      神前純一
    • Organizer
      日本物理学会 2013 年年次大会
    • Place of Presentation
      広島大学
    • Year and Date
      2013-03-26
  • [Presentation] Introduction to Hadron Collider Physics2012

    • Author(s)
      Kaoru Hagiwara
    • Organizer
      25th Spring School on Particles and Fields 2012(招待講演)
    • Place of Presentation
      国立台湾大学(台湾)
    • Year and Date
      20120405-08
  • [Presentation] W+4 jets background for the top forward-backward asymmetry at Tevatron2012

    • Author(s)
      Y.Takaesu
    • Organizer
      QCD 12, 16th International QCD Conference
    • Place of Presentation
      Montpellier (フランス)
    • Year and Date
      2012-07-02
  • [Presentation] GPU を利用した高速事象生成システムの開発2011

    • Author(s)
      神前純一
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大
    • Year and Date
      2011-03-26
  • [Presentation] 散乱振幅自動計算プログラム Madgraph への gravitino の実装およびその現象論2010

    • Author(s)
      高江洲義太郎
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-22
  • [Presentation] LHC 実験2010

    • Author(s)
      神前純一
    • Organizer
      KEK 理論研究会(招待講演)
    • Place of Presentation
      KEK
    • Year and Date
      2010-02-19
  • [Presentation] GPUを用いた散乱振幅計算の高速化12009

    • Author(s)
      岡村直利
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      甲南大学
    • Year and Date
      2009-09-12
  • [Remarks]

    • URL

      http://madgraph.kek.jp/KEK/

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Published: 2014-08-29   Modified: 2015-11-30  

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