Exploring LHC Physics using Lattice Gauge Theory

• Project/Area Number: 22740183
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: YAMADA Norikazu 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, 研究機関講師 (50399432)
• Project Period (FY): 2010-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 素粒論(理論) / 格子ゲージ理論 / 数値シミュレーション / LHC / 強結合理論 / 相転移 / 共形場 / 素粒子物理 / 有限温度相転移 / テクニカラー / ヒッグスの物理 / 計算物理学 / 強結合 / 素粒子論

Research Abstract

Various properties of strongly coupled gauge theory, or technicolor model, which is known to be an attractive candidate beyond the standard model in particle physics, was investigated by performing numerical simulations based on lattice gauge theory. A crucial point in the study is to identify whether a given gauge theory shows infrared conformality or not, and for a certain explicit model we have determined it by investigating the infrared fixed point of the running gauge coupling constant and by seeing low energy spectrum. We also developed a easy-to-use method to clarify the existence of finite temperature phase transition and its nature.

Research Products

• [Journal Article] More about vacuum structure of Linear Sigma Model (2013)
  • Author(s): T. Sato and N. Yamada
  • Journal Title: PoS LATTICE 2013 Pages: 430-430
  • URL: http://inspirehep.net/record/1265075
• [Journal Article] Lattice Study on quantum-mechanical dynamics of two-color QCD with six light flavors (2013)
  • Author(s): M.Hayakawa, K.-I.Ishikawa, S.Takeda, M.Tomii and N.Yamada,
  • Journal Title: Physical Review D Volume: ８８ Issue: 9 Pages: 94506-94506
  • DOI: 10.1103/physrevd.88.094506
  • Peer Reviewed
• [Journal Article] Running coupling constant and mass anomalous dimension of six-flavor SU(2) gauge theory (2013)
  • Author(s): M.Hayakawa, K.-I.Ishikawa, S.Takeda and N.Yamada
  • Journal Title: Physical Review D Volume: ８８ Issue: 9 Pages: 94504-94504
  • DOI: 10.1103/physrevd.88.094504
  • Peer Reviewed
• [Journal Article] Endpoint of first order phase transition in many flavor lattice QCD at finite temperature and density (2013)
  • Author(s): S. Ejiri and N. Yamada
  • Journal Title: Phys. Rev. Lett Volume: 110 Issue: 17 Pages: 172001-172001
  • DOI: 10.1103/physrevlett.110.172001
  • NAID: 120006748844
  • Peer Reviewed
• [Journal Article] Large-Nc gauge theory and chiral random matrix theory (2013)
  • Author(s): M. Hanada, J.-W. Lee and N. Yamada
  • Journal Title: Phys. Rev Volume: D88 Issue: 2 Pages: 25046-25046
  • DOI: 10.1103/physrevd.88.025046
  • Peer Reviewed
• [Journal Article] 数値シミュレーションで迫るヒッグスの正体 (2013)
  • Author(s): 山田憲和
  • Journal Title: 日本シミュレーション学会誌「シミュレーション」 Volume: 32巻1号 Pages: 29-34
  • Peer Reviewed
• [Journal Article] Endpoint of a first-order phase transition in many-flavor lattice QCD at finite temperature and density (2013)
  • Author(s): Shinji Ejiri, Norikazu Yamada
  • Journal Title: Physical Review Letter Volume: 110 Pages: 172001-172001
  • NAID: 120006748844
  • Peer Reviewed
• [Journal Article] Running coupling constant of ten-flavor QCD with the Schrodinger functional method (2011)
  • Author(s): M.Hayakawa, N.Yamada, 他4名
  • Journal Title: Physical Review Volume: D83 Issue: 7 Pages: 74509-74509
  • DOI: 10.1103/physrevd.83.074509
  • Peer Reviewed
• [Journal Article] Determination of the chiral condensate from QCD Dirac spectrum on the lattice (2011)
  • Author(s): H. Fukaya, S. Aoki, T. W. Chiu, S. Hashimoto, T. Kaneko, J. Noaki, T. Onogi, N. Yamada
  • Journal Title: Physical Review Volume: D83 Issue: 7 Pages: 74501-74501
  • DOI: 10.1103/physrevd.83.074501
  • Peer Reviewed
• [Journal Article] Determination of the chiral condensate from QCD Dirac spectrum on the lattice (2011)
  • Author(s): JLQCD, TWQCD Collaboration (H.Fukaya, et al.)
  • Journal Title: Physical Review D Volume: (掲載決定 TBA)
  • Peer Reviewed
• [Journal Article] Running coupling constant of ten-flavor QCD with the Schr￥'odinger functional method (2011)
  • Author(s): M.Hayakawa, K.-I.Ishikawa, Y.Osaki, S.Takeda, S.Uno, N.Yamhada
  • Journal Title: Physical Review D Volume: (掲載決定 TBA)
  • Peer Reviewed
• [Journal Article] Electromagnetic mass splittings of the low lying hadrons and quark masses from 2+1 flavor lattice QCD+QED (2010)
  • Author(s): T. Blum, R. Zhou, T. Doi, M. Hayakawa, T. Izubuchi, S. Uno, N. Yamada
  • Journal Title: Phys. Rev Volume: D82 Issue: 9 Pages: 94508-94508
  • DOI: 10.1103/physrevd.82.094508
  • Peer Reviewed
• [Journal Article] Two-photon decay of π0 from two-flavor lattice QCD. (2010)
  • Author(s): E.Shintani, S.Aoki, S.Hashimoto, T.Onogi, N.Yamada.
  • Journal Title: PoS Volume: LATTICE2010 Pages: 159-159
• [Journal Article] Improving many flavor QCD simulations using multiple GPUs (2010)
  • Author(s): M.Hayakawa, K.-I.Ishikawa, Y.Osaki, S.Takeda, S.Uno, N.Yamada
  • Journal Title: Pos Volume: LATTICE2010 Pages: 325-325
• [Journal Article] Electromagnetic mass splittings of the low lying hadrons and quark masses from 2+1 flavor lattice QCD+QED (2010)
  • Author(s): T.Blum, R.Zhou, T.Doi, M.Hayakawa, T.Izubuchi, S.Uno, N.Yamada
  • Journal Title: Physical Review D Volume: 82 Pages: 94508-94508
  • Peer Reviewed
• [Presentation] Exploring many-flavor QCD using two-flavor configurations (2014)
  • Author(s): N. Yamada
  • Organizer: JICFuS Mini-workshop on "Gauge theories with many flavors and related topics"
  • Place of Presentation: YITP, Kyoto
  • Year and Date: 2014-03-10
• [Presentation] Exploring many-flavor QCD using two-flavor configurations (2014)
  • Author(s): N. Yamada
  • Organizer: SCGT14 mini
  • Place of Presentation: KMI, Nagoya
  • Year and Date: 2014-02-07
• [Presentation] Study of SU(2) gauge theory with six flavors (2014)
  • Author(s): N. Yamada
  • Organizer: SCGT14 mini
  • Place of Presentation: KMI, Nagoya
  • Year and Date: 2014-02-07
• [Presentation] Phase Transition in Particle Physics (2013)
  • Author(s): N. Yamada
  • Organizer: Invited Seminar
  • Place of Presentation: AIST, Tsukuba
  • Year and Date: 2013-12-04
• [Presentation] Why many flavor QCD is so interesting? (2013)
  • Author(s): N. Yamada
  • Organizer: Invited Seminar
  • Place of Presentation: Shimane Univ
  • Year and Date: 2013-10-25
• [Presentation] 有限温度多フレーバーQCD の相構造の研究(II) (2013)
  • Author(s): N. Yamada
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 高知大学
  • Year and Date: 2013-09-22
• [Presentation] SU(2) gauge theory with 6-flavors, CP3-Origins, SDU (2013)
  • Author(s): N. Yamada
  • Organizer: Origin of Mass 2013
  • Place of Presentation: Odense, Denmark
  • Year and Date: 2013-08-22
• [Presentation] Search for the endpoint of first order phase transition in many-flavor lattice QCD (2013)
  • Author(s): N. Yamada
  • Organizer: The 31st International Symposium on Lattice Field Theory
  • Place of Presentation: Mainz, Germany
  • Year and Date: 2013-07-31
• [Presentation] Evaluation of hadronic contribution to muon g-2 by Lattice QCD (2012)
  • Author(s): N. Yamada
  • Organizer: 6th g-2/EDM Experiment Collaboration meeting
  • Place of Presentation: KEK
  • Year and Date: 2012-11-02
• [Presentation] g-2 --Recent progress on the lattice-- (2012)
  • Author(s): N. Yamada
  • Organizer: PPP2012
  • Place of Presentation: YITP, Kyoto
  • Year and Date: 2012-08-09
• [Presentation] muon g-2 --格子QCDからのアプローチ-- (2012)
  • Author(s): N. Yamada
  • Organizer: 斎藤研コロキウム
  • Place of Presentation: KEK
  • Year and Date: 2012-07-18
• [Presentation] Exploring Many Flavor QCD with Wilson Fermion (2012)
  • Author(s): N. Yamada
  • Organizer: New Horizons for Lattice Computations With Chiral Fermions
  • Place of Presentation: BNL
  • Year and Date: 2012-05-16
• [Presentation] Phase structure of many flavor lattice QCD at finite temperature (2012)
  • Author(s): N. Yamada
  • Organizer: Symposium on "Quarks to Universe in Computational Science"
  • Place of Presentation: Nara Prefectual New Public Hall, Nara
• [Presentation] Phase structure of many flavor lattice QCD at finite temperature (2012)
  • Author(s): N. Yamada
  • Organizer: KMI/GCOE Workshop on "Strong Coupling Gauge Theories in the LHC Perspective"
  • Place of Presentation: KMI, Nagoya
• [Presentation] Exploring Many Flavor QCD with Wilson Fermion (2012)
  • Author(s): N. Yamada
  • Organizer: New Horizons for Lattice Computations With Chiral Fermions
  • Place of Presentation: BNL, New York、USA
  • Invited
• [Presentation] Phase structure of many flavor lattice QCD at finite temperature (2012)
  • Author(s): N. Yamada
  • Organizer: KMI/GCOE Workshop on "Strong Coupling Gauge Theories in the LHC Perspective"
  • Place of Presentation: Nagoya Univ., Nagoya
  • Invited
• [Presentation] g-2 --Recent progress on the lattice-- (2012)
  • Author(s): N. Yamada
  • Organizer: PPP2012
  • Place of Presentation: 京大基礎物理学研究所、京都
  • Invited
• [Presentation] Searching for Walking Technicolor theory on the Lattice (2011)
  • Author(s): N. Yamada
  • Organizer: Particle Physics Seminar at IPMU
  • Place of Presentation: Univ. of Tokyo
  • Year and Date: 2011-02-17
• [Presentation] Search for Walking Technicolor theory using Lattice Gauge Theory (2011)
  • Author(s): N. Yamada
  • Organizer: Particle Physics Seminar
  • Place of Presentation: Nihon University
  • Year and Date: 2011-01-12
• [Presentation] Revisiting Technicolor using lattice gauge theory (2010)
  • Author(s): N. Yamada
  • Organizer: RIKEN symposium "Lattice simulation on Next-Generation supercomputer"
  • Place of Presentation: RIKEN
  • Year and Date: 2010-09-25
• [Presentation] Lattice Gauge Theories with Many Flavors (2010)
  • Author(s): N. Yamada
  • Organizer: Summer Institute 2010 "Particle Physics Phenomenology"
  • Place of Presentation: Fuji-Yoshida, Japan
  • Year and Date: 2010-08-15
• [Presentation] Searching for Walking Technicolor Theory Using Lattice (2010)
  • Author(s): N. Yamada
  • Organizer: 金沢大学素粒子論研究室セミナー
  • Place of Presentation: 金沢大学
  • Year and Date: 2010-06-25
• [Presentation] Conformal window in many flavor QCD (2010)
  • Author(s): N. Yamada
  • Organizer: International Symposium "From Quarks to Supernovae"
  • Place of Presentation: Atagawa Heights (Izu, Shizuoka, Japan)
• [Presentation] 有限温度多フレーバーQCDの相構造の研究(II)
  • Author(s): 山田 憲和
  • Organizer: 日本物理学会
  • Place of Presentation: 高知大学
• [Presentation] SU(2) gauge theory with 6-flavors
  • Author(s): N. Yamada
  • Organizer: Origin of Mass 2013
  • Place of Presentation: Odense, Denmark
  • Invited
• [Presentation] Study of SU(2) gauge theory with six flavors
  • Author(s): N. Yamada
  • Organizer: SCGT14 mini
  • Place of Presentation: Nagoya, Japan
  • Invited
• [Presentation] Exploring many-flavor QCD" using two-flavor configurations
  • Author(s): N. Yamada
  • Organizer: JICFuS Mini-workshop on "Gauge theories with many flavors and related topics”
  • Place of Presentation: Kyoto, Japan
  • Invited
• [Book] 素粒子物理学 (2012)
  • Author(s): 堺井 義秀, 山田 憲和, 野尻 美保子
  • Total Pages: 238
  • Publisher: 共立出版
• [Book] 素粒子物理学 (2012)
  • Author(s): 堺井義秀,山田 憲和,野尻美保子
  • Total Pages: 238
  • Publisher: 共立出版
• [Book] 日本シミュレーション学会学会誌「シミュレーション」32巻1号(3月号)