Study of Quantum Chromodynamics using lattice gauge theory with exact chiral symmetry

• Project/Area Number: 18340075
• 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: HASHIMOTO Shoji High Energy Accelerator Research Organization, 素粒子原子核研究所, 准教授 (90280510)
• Co-Investigator(Kenkyū-buntansha): YAMADA Norikazu 高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (50399432) ; OKAWA Masanori 広島大学, 大学院・理学研究科, 教授 (00168874) ; MATSUFURU Hideo 高エネルギー加速器研究機構, 計算科学センター, 助教 (10373185) ; KANEKO Takashi 高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (20342602) ; ONOGI Tetsuya 京都大学, 基礎物理学研究所, 准教授 (70211802) ; AOKI Sinya 筑波大学, 数理物質科学研究科, 教授 (30192454)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥17,190,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥3,090,000); Fiscal Year 2008: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000); Fiscal Year 2007: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000); Fiscal Year 2006: ¥3,800,000 (Direct Cost: ¥3,800,000)
• Keywords: 素粒子論 / 格子QCD / カイラル対称性

Research Abstract

厳密なカイラル対称性をもつ格子理論を使った量子色力学(QCD)の数値シミュレーションを初めて実現し、QCDにおける自発的対称性の破れの検証や、カイラル有効理論との整合性の検証、これまでは不可能だったさまざまな物理量の計算を実現し、QCDの非摂動的研究に新たな側面を拓いた。

Research Products

• [Journal Article] Convergence of the chiral expansion in two-flavor lattice QCD (2008)
  • Author(s): J. Noaki, S. Aoki, T. W. Chiu, H. Fukaya, S. Hashimoto, T. H. Hsieh, T. Kaneko, H. Matsufuru, T. Onogi, E. Shintani, N. Yamada
  • Journal Title: Physical Review Letters 101, 202004
  • Peer Reviewed
• [Journal Article] S-parameter and pseudo-Nambu-Goldstone boson mass from lattice QCD (2008)
  • Author(s): E. Shintani, S. Aoki, H. Fukaya, S. Hashimoto, T. Kaneko, H. Matsufuru, T. Onogi, N. Yamada
  • Journal Title: Physical Review Letters 101, 242001
  • Peer Reviewed
• [Journal Article] Nucleon sigma term and strange quark content from Lattice QCD (2008)
  • Author(s): H. Ohki, et al.
  • Journal Title: Physical Review D 78 Pages: 54502-54502
  • Peer Reviewed
• [Journal Article] S-parameter and pseudo-Nambu-Goldstone boson mass from Lattice QCD (2008)
  • Author(s): E. Shintani, et al.
  • Journal Title: Physical Review Letters 101 Pages: 24201-24201
  • Peer Reviewed
• [Journal Article] Convergence of the chiral expansion in two-flavor QCD (2008)
  • Author(s): J. Noaki, et al.
  • Journal Title: Physical Review Letters 101 Pages: 202004-202004
  • Peer Reviewed
• [Journal Article] Lattice study of meson correlators in the e-regime of two-flavor QCD (2008)
  • Author(s): Fukaya, et. al.[JLQCD collab]
  • Journal Title: Physical Review D 77 Pages: 94503-94503
  • Peer Reviewed
• [Journal Article] Two-flavor lattice QCD simulation in the epsilon-regime with exact chiral symmetry (2007)
  • Author(s): H. Fukaya, S. Aoki, T.W. Chiu, S. Hashimoto, K.-I. Ishikawa, T. Kaneko, H. Matsufuru, K. Ogawa, M. Okamoto, T. Onogi, N. Yamada
  • Journal Title: Physical Review Letters 98, 172001
  • Peer Reviewed
• [Journal Article] Two-flavor lattice QCD in the epsion-regime and chiral random matrix (2007)
  • Author(s): Fukaya, et. al.[JLQCD collab]
  • Journal Title: Physical Review D 76 Pages: 54503-54503
  • Peer Reviewed
• [Journal Article] Two-flavor lattice QCD simulation in the e-regime with exact chiral...P (2007)
  • Author(s): Fukaya, et. al.[JLQCD collab]
  • Journal Title: Physical Review Letters 98 Pages: 172001-172001
  • Peer Reviewed
• [Journal Article] Lattice gauge action suppressing near-zero modes of H_W (2006)
  • Author(s): H.Fukaya et al.[JLQCD collaboration]
  • Journal Title: Physical Review D 74 Pages: 94505-94505
• [Presentation] Physics results from dynamical overlap fermion simulations (2008)
  • Author(s): S. Hashimoto
  • Organizer: 26^<th> International Symposium on Lattice Field Theory (Lattice 2008)
  • Place of Presentation: アメリカ・バージニア州
  • Year and Date: 2008-07-16
• [Presentation] 格子ゲージ理論でさぐるQCD真空 (2008)
  • Author(s): 橋本省二
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 山形大学
• [Presentation] Physics results from dynamical overlap fermion simulations (2008)
  • Author(s): S. Hashimoto
  • Organizer: 第26回格子場理論国際会議
  • Place of Presentation: 米国バージニア州
• [Presentation] Exploring chiral regime with dynamical overlap fermions (2007)
  • Author(s): Hideo Matsufuru
  • Organizer: Lattice2007
  • Place of Presentation: レーゲンスブルグ
  • Year and Date: 2007-07-30
• [Remarks]
  • URL: http://jlqcd.kek.jp/