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

• Project/Area Number: 20340064
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: High 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
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000); Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2011: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2010: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2009: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2008: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
• 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) / 素粒子理論 / ＧＰＵ / ＬＨＣ / 国際情報交換（欧州） / リニアコライダー / 散乱振幅の自動計算 / イベントジェネレーター / MadGraph / HELAS / ヒッグス機構 / テラスケール物理 / 素粒子模型 / 高速自動計算 / 事象シミュレータ / 並列計算 / 余剰次元 / 余剰次元模型

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

• [Journal Article] Null radiation zone at the LHC (2013)
  • Author(s): Toshifumi Yamada, Kaoru Hagiwara
  • Journal Title: Physical Review D Volume: 87 Issue: 1 Pages: 14021-14021
  • DOI: 10.1103/physrevd.87.014021
  • Peer Reviewed
• [Journal Article] On the W+4jets background to the top quark asymmetry Kaoru Hagiwara at the Tevatron (2013)
  • Author(s): K. Hagiwara
  • Journal Title: Nucl.Phys.Proc.Suppl Volume: 234 Pages: 93-96
  • DOI: 10.1016/j.nuclphysbps.2012.11.022
  • Peer Reviewed
• [Journal Article] Diquark contribution to Top quark charge asymmetry at the Tevatron and LHC (2013)
  • Author(s): K. Hagiwara
  • Journal Title: JHEP Volume: 1302 Issue: 2 Pages: 100-100
  • DOI: 10.1007/jhep02(2013)100
  • Peer Reviewed
• [Journal Article] On the W+4jets background to the top quark asymmetry at the Tevatron (2013)
  • Author(s): Kaoru Hagiwara
  • Journal Title: Nucl.Phys.Proc.Suppl. Volume: 234 Pages: 93-96
• [Journal Article] Properties of 125 GeV Higgs boson in non-decoupling MSSM scenarios (2012)
  • Author(s): K. Hagiwara
  • Journal Title: JHEP Volume: 1210 Issue: 10 Pages: 2-2
  • DOI: 10.1007/jhep10(2012)002
  • Peer Reviewed
• [Journal Article] The MSSM confronts precision electroweak data and the muon g-2 (2011)
  • Author(s): G.C. Cho, K.Hagiwara, Y.Matsumoto, D.Nomura
  • Journal Title: JHEP Volume: 1111 Issue: 11 Pages: 68-68
  • DOI: 10.1007/jhep11(2011)068
  • Peer Reviewed
• [Journal Article] (g-2)_μ and α(M^2_Z) re-evaluated using new precise data (2011)
  • Author(s): K.Hagiwara, R.Liao, A.D.Martin, D.Nomura, T.Teubner
  • Journal Title: Journal of Physics G : Nuclear and Particle Physics Volume: 38 Issue: 8 Pages: 85003-85003
  • DOI: 10.1088/0954-3899/38/8/085003
  • Peer Reviewed
• [Journal Article] Simulating graviton production at hadron colliders (2011)
  • Author(s): P. de Aquino, K. Hagiwara, Q. Li, F.Maltoni
  • Journal Title: JHEP Volume: 1106 Issue: 6 Pages: 132-132
  • DOI: 10.1007/jhep06(2011)132
  • Peer Reviewed
• [Journal Article] Monte Carlo integration on GPU (2011)
  • Author(s): J.Kanzaki
  • Journal Title: Eur.Phys.J. Volume: C71 Issue: 2 Pages: 1559-1559
  • DOI: 10.1140/epjc/s10052-011-1559-8
  • Peer Reviewed
• [Journal Article] HELAS and MadGraph with spin-3/2 particles (2011)
  • Author(s): K. Hagiwara, K. Mawatari, Y. Takaesu
  • Journal Title: Eur.Phys.J Volume: C71 Issue: 1 Pages: 1529-1529
  • DOI: 10.1140/epjc/s10052-010-1529-6
  • Peer Reviewed
• [Journal Article] Monte Carlo integration on GPU (2011)
  • Author(s): J.Kanzaki
  • Journal Title: The European Physical Journal C-Particles and Fields 71 Pages: 1559-1559
  • Peer Reviewed
• [Journal Article] HELAS and MadGraph with spin-3/2 particles (2011)
  • Author(s): K.Hagiwara, K.Mawatari, Y.Takaesu
  • Journal Title: The European Physical Journal C - Particles and Fields 71 Pages: 1529-1529
  • Peer Reviewed
• [Journal Article] HELAS and Mad Graph with spin-3/2 particles (2011)
  • Author(s): K.Hagiwara, K.Mawatari, Y.Takaesu
  • Journal Title: The European Physical Journal C-Particles and Fields Volume: 71 Pages: 1529-1529
  • Peer Reviewed
• [Journal Article] Monte Carlo integration on GPU (2011)
  • Author(s): J.Kanzaki
  • Journal Title: The European Physical Journal C-Particles and Fields Volume: 71 Pages: 1559-1559
  • 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 Issue: 1-2 Pages: 513-524
  • 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 Issue: 3-4 Pages: 477-492
  • DOI: 10.1140/epjc/s10052-010-1276-8
  • 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: The European Physical Journal C-Particles and Fields 66 Pages: 477-492
  • 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: The European Physical Journal C-Particles and Fields Volume: 66 Pages: 477-492
  • 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: The European Physical Journal C-Particles and Fields Volume: 70 Pages: 513-524
  • Peer Reviewed
• [Journal Article] Bound-state effects on gluino-pair production at hadron colliders (2009)
  • Author(s): K.Hagiwara, H.Yokoya
  • Journal Title: JHEP Volume: 0910 Issue: 10 Pages: 49-49
  • DOI: 10.1088/1126-6708/2009/10/049
  • Peer Reviewed
• [Journal Article] Jet angular correlation in vector-boson fusion processes at hadron colliders (2009)
  • Author(s): K.Hagiwara, Q.Li, K.Mawatar
  • Journal Title: JHEP Volume: 0907 Issue: 07 Pages: 101-101
  • DOI: 10.1088/1126-6708/2009/07/101
  • Peer Reviewed
• [Journal Article] Jet angular correlation in vector-boson fusion processes at hadron colliders (2009)
  • Author(s): K.Hagiwara, Q.Li, K.Mawatari
  • Journal Title: Journal of High Energy Physics, JHEP 101
  • Peer Reviewed
• [Journal Article] Jet angular correlation in vector-boson fusion processes at hadron colliders (2009)
  • Author(s): K.Hagiwara, Q.Li, K.Mawatari
  • Journal Title: Journal of High Energy Physics 0907 Pages: 101-101
  • Peer Reviewed
• [Journal Article] Bound-state effects on gluino-pair production at hadron colliders (2009)
  • Author(s): K.Hagiwara, H.Yokoya
  • Journal Title: Journal of High Energy Physics 0910 Pages: 49-49
  • Peer Reviewed
• [Journal Article] Measuring Higgs-Vector boson Couplings at Linear e+e- Collider (2008)
  • Author(s): S.Dutta, K.Hagiwara, Y.Matsumoto
  • Journal Title: Phys.Rev Volume: D78 Issue: 11 Pages: 115016-115016
  • DOI: 10.1103/physrevd.78.115016
  • Peer Reviewed
• [Journal Article] HELAS and MadGraph/MadEvent with spin-2 particles (2008)
  • Author(s): K. Hagiwara, Q. Li, J. Kanzaki, K.Mawatari
  • Journal Title: Eur.Phys.J Volume: C56 Issue: 3 Pages: 435-447
  • DOI: 10.1140/epjc/s10052-008-0663-x
  • Peer Reviewed
• [Journal Article] Bound-state Effects on Top Quark Production at Hadron Colliders (2008)
  • Author(s): K.Hagiwara, Y.Sumino, H.Yokoya
  • Journal Title: Phys.Lett Volume: B666 Issue: 1 Pages: 71-76
  • DOI: 10.1016/j.physletb.2008.07.006
  • Peer Reviewed
• [Journal Article] Mixed QCD-electroweak contributions to Higgs-plus-dijet production at the LHC (2008)
  • Author(s): A.Bredenstein, K.Hagiwara, B.Jager
  • Journal Title: Phys.Rev Volume: D77 Issue: 7 Pages: 73004-73004
  • DOI: 10.1103/physrevd.77.073004
  • Peer Reviewed
• [Journal Article] Graviton production with 2 jets at the LHC in large extra dimensions (2008)
  • Author(s): K. Hagiwara, P. Konar, Q. Li, K.Mawatari, D.Zeppenfeld
  • Journal Title: JHEP Volume: 0804 Issue: 04 Pages: 19-19
  • DOI: 10.1088/1126-6708/2008/04/019
  • Peer Reviewed
• [Journal Article] Constraints on the electroweak chiral Lagrangian from the precision data (2008)
  • Author(s): 19 S. Dutta, K. Hagiwara, Q. S. Yan, K.Yoshida
  • Journal Title: Nucl.Phys Volume: B790 Issue: 1-2 Pages: 111-137
  • DOI: 10.1016/j.nuclphysb.2007.08.017
  • Peer Reviewed
• [Journal Article] HELAS and MadGraph/MadEvent with spin-2 particles (2008)
  • Author(s): K.Hagiwara, Q.Li, J.Kanzaki, K.Mawatari
  • Journal Title: European Physical Journal, C 56 Pages: 435-447
  • Peer Reviewed
• [Journal Article] Constraints on the electroweak chiral Lagrangian from the precision data (2008)
  • Author(s): S.Dutta, K.Hagiwara, Q.S.Yan, K.Yoshida
  • Journal Title: Nuclear Physics B790 Pages: 111-137
  • Peer Reviewed
• [Journal Article] Graviton production with 2 jets at the LHC in large extra dimensions (2008)
  • Author(s): K.Hagiwara, P.Konar, Q.Li, K.Mawatari, D.Zeppenfeld
  • Journal Title: Journal of High Energy Physics 0804
  • Peer Reviewed
• [Journal Article] Mixed QCD-electroweak contributions to Higgs-plus-dijet production at the LHC (2008)
  • Author(s): A.Bredenstein, K.Hagiwara, B.Jager
  • Journal Title: Physical Review D77
  • Peer Reviewed
• [Journal Article] Bound-state Effects on Top Quark Production at Hadron Colliders (2008)
  • Author(s): K.Hagiwara, Y.Sumino, H.Yokoya
  • Journal Title: Physics Letters B666 Pages: 71-76
  • Peer Reviewed
• [Journal Article] HELAS and MadGraph/MadEvent with spin-2 particles (2008)
  • Author(s): K.Hagiwara, Q.Li, J.Kanzaki, K.Mawatari
  • Journal Title: European Physical Journal C56 Pages: 435-447
  • Peer Reviewed
• [Journal Article] Measuring Higgs-Vector boson Couplings at Linear e+e- Collider (2008)
  • Author(s): S.Dutta, K.Hagiwara, Y.Matsumoto
  • Journal Title: Physical Review D78
  • 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] W+4 jets background for the top forward-backward asymmetry at Tevatron (2012)
  • 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] Introduction to Hadron Collider Physics (2012)
  • 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)
• [Presentation] Introduction to Hadron Collider Physics (2012)
  • Author(s): Kaoru Hagiwara
  • Organizer: 25th Spring School on Particles and Fields 2012
  • Place of Presentation: 国立台湾大学（台湾）
  • Invited
• [Presentation] MG/ME on GPU (2011)
  • Author(s): 神前純一
  • Organizer: KIAS School on MadGraph for LHC physics
  • Place of Presentation: 韓国高等研究所(KIAS)(韓国・ソウル)(招待講演)
  • Year and Date: 2011-10-29
• [Presentation] GPUによる簡易型測定器シミュレーション・プログラムの高速化 (2011)
  • Author(s): 神前純一
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 弘前大学(青森県)
  • Year and Date: 2011-09-16
• [Presentation] Generating QCD amplitudes in the color-flow basis with MadGraph (2011)
  • Author(s): 萩原薫
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大学
  • Year and Date: 2011-03-28
• [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] 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: 関西学院大学(兵庫県)
  • Year and Date: 2011-03-26
• [Presentation] GPUの利用による高速事象生成 (2011)
  • Author(s): 神前純一
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大学
  • Year and Date: 2011-03-25
• [Presentation] GPU を用いた高エネルギー実験用ソフトウェアの高速化 (2010)
  • Author(s): 神前純一
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 九州工業大学
  • Year and Date: 2010-09-14
• [Presentation] GPUを用いた高エネルギー実験用ソフトウェアの高速化 (2010)
  • Author(s): 神前純一
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 九州工業大学
  • Year and Date: 2010-09-14
• [Presentation] GPU の利用による高速事象生成 (2010)
  • Author(s): 神前純一
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大学
  • Year and Date: 2010-03-25
• [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] 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] GPUを用いた散乱振幅計算の高速化1 (2010)
  • Author(s): 神前純一
  • Organizer: 日本物理学会2010年春季大会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-20
• [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] 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 (2009)
  • Author(s): 高江洲義太郎
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 岡山大学
  • Year and Date: 2009-09-22
• [Presentation] GPUを用いた散乱振幅計算の高速化1 (2009)
  • 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
• [Presentation] GPU を用いた散乱振幅計算の高速化1 (2009)
  • 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
• [Presentation] GPUを用いた散乱振幅計算の高速化2 (2009)
  • Author(s): 神前純一
  • 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
• [Presentation] LHCアトラス実験におけるttH(→γγ)プロセスを用いたトップ湯川結合定数の測定精度について (2008)
  • Author(s): 神前純一
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 山形大学
  • Year and Date: 2008-09-22
• [Presentation] 超対称性標準模型が予言する質量125ギガ電子ボルトのヒッグス粒子の性質
  • Author(s): 中村純也（萩原薫）
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 京都産業大学
• [Presentation] ＬＨＣを用いた、アイソスピンを破るダークマターの検証
  • Author(s): 山田敏史（萩原薫）
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 京都産業大学
• [Presentation] On the W+4jets background to top quark asymmetry at the Tevatron
  • Author(s): 高江洲義太郎（萩原薫）
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 京都産業大学
• [Presentation] ＧＰＵ上での高速パートンシャワープログラムの開発
  • Author(s): 神前純一（萩原薫）
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 京都産業大学
• [Presentation] Coherent Branching Algorithm に基づくパートンシャワープログラムの開発
  • Author(s): 神前純一（萩原薫）
  • Organizer: 日本物理学会2013年年次大会
  • Place of Presentation: 広島大学
• [Remarks]
  • URL: http://madgraph.kek.jp/KEK/
• [Remarks] KEK HELAS/MadGraph/MadEvent Home Page
  • URL: http://madgraph.kek.jp/KEK/index.html
• [Remarks] 本研究課題の成果は以下のウェブにて公開されている:
  • URL: http://madgraph.kek.jp/KEK/