Lattice study of hadron structure and strangness contribution

• Project/Area Number: 19540265
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: SASAKI Shoichi The University of Tokyo, 大学院・理学系研究科, 助教 (60332590)
• Project Period (FY): 2007 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 量子色力学 / 格子ゲージ理論 / ハドロン物理 / 核子 / 弱い相互作用 / フレーバー対称性の破れ / ハイペロン構造 / 核子構造 / ハイペロン崩壊 / カビボ・小林・益川行列 / 素粒子標準模型

Research Abstract

The latest lattice QCD calculations are progressing with steadily increasing accuracy due to the rapid development of the computer and the numerical algorithm. Fully dynamical QCD simulations with two degenerate light (up and down) and heavier (strange) flavors of quarks have been mostly devoted to studies of the hadron structure by the worldwide lattice QCD community during the past several years. In this study, we take advantage of 2+1 flavor dynamical QCD gauge configurations, which are publicly available to lattice QCD community through ILDG (International Lattice Data Grid) and then study the nucleon structure and also hadron properties from the viewpoint of the SU(3) flavor symmetry breaking by first-principles calculation in a model-independent way.

Research Products

• [Journal Article] (2010)
  • Author(s): Y.Aoki, T.Blum, H.-W.Lin, S.Ohta, S.Sasaki, R.J.Tweedie, T.Yamazaki, J.M.Zanotti
  • Journal Title: Physical Review D 82 Pages: 14501-14501
  • Peer Reviewed
• [Journal Article] Nucleon Isovector Structure Functions in (2+1)?-flavor QCD with Domain Wall Fermions (2010)
  • Author(s): T.Yamazaki, et al.
  • Journal Title: Physical Review D Volume: 82 Pages: 14501-14501
  • Peer Reviewed
• [Journal Article] (2009)
  • Author(s): T.Yamazaki, Y.Aoki, T.Blum, H.-W.Lin, S.Ohta, S.Sasaki, R.J.Tweedie, J.M.Zanotti
  • Journal Title: Physical Review D 79 Pages: 114505-114505
  • Peer Reviewed
• [Journal Article] (2009)
  • Author(s): S.Sasaki, T.Yamazaki
  • Journal Title: Physical Review D 79 Pages: 74508-74508
  • Peer Reviewed
• [Journal Article] (2009)
  • Author(s): S. Sasaki, T. Yamazaki
  • Journal Title: Physical Review D79 Pages: 74508-74508
  • Peer Reviewed
• [Journal Article] (2009)
  • Author(s): T. Yamazaki, Y. Aoki, T. Blum, H.-W. Lin, S. Ohta, S. Sasaki, R. J. Tweedie, J. M. Zanotti
  • Journal Title: Physical Review D79 Pages: 114505-114505
  • Peer Reviewed
• [Journal Article] Lattice study of flavor SU(3)breaking in hyperon beta decay (2009)
  • Author(s): S.Sasaki, T.Yamazaki
  • Journal Title: Physical Review D 79 Pages: 74508-74508
  • Peer Reviewed
• [Journal Article] Nucleon form factor with 2+1 flavor dynamical domain-wall fermions (2009)
  • Author(s): T.Yamazaki, et al
  • Journal Title: Physical Review D 79 Pages: 114505-114505
  • Peer Reviewed
• [Journal Article] (2008)
  • Author(s): S.Sasaki, T.Yamazaki
  • Journal Title: Physical Review D 78 Pages: 14510-14510
  • Peer Reviewed
• [Journal Article] (2008)
  • Author(s): P.A.Boyle, A.Juttner, R.D.Kenway, C.T.Sachrajda, S.Sasaki, A.Soni, R.J.Tweedie, J.M.Zanotti
  • Journal Title: Physical Review Letter 100 Pages: 141601-141601
  • Peer Reviewed
• [Journal Article] (2008)
  • Author(s): T.Yamazaki, Y.Aoki, T.Blum, H.-W.Lin, M.-F.Lin, S.Ohta, S.Sasaki, R.J.Tweedie, J.M.Zanotti
  • Journal Title: Physical Review Letter 100 Pages: 171602-171602
  • Peer Reviewed
• [Journal Article] (2008)
  • Author(s): H.-W.Lin, T.Blum, S.Ohta, S.Sasaki, T.Yamazaki
  • Journal Title: Physical Review D 78 Pages: 14505-14505
  • Peer Reviewed
• [Journal Article] (2008)
  • Author(s): H.-W. Lin, T. Blum, S. Ohta, S. Sasaki, T. Yamazaki
  • Journal Title: Physical Review D78 Pages: 14505-14505
  • Peer Reviewed
• [Journal Article] (2008)
  • Author(s): T. Yamazaki, Y. Aoki, T. Blum, H.-W. Lin, M.-F. Lin, S. Ohta, S. Sasaki, R.J. Tweedie, J.M. Zanotti
  • Journal Title: Physical Review Letter 100 Pages: 171602-171602
  • Peer Reviewed
• [Journal Article] (2008)
  • Author(s): P. A. Boyle, A. Juttner, R. D. Kenway, C. T. Sachrajda, S. Sasaki, A. Soni, R. J. Tweedie, J. M. Zanotti
  • Journal Title: Physical Review Letter 100 Pages: 141601-141601
  • Peer Reviewed
• [Journal Article] (2008)
  • Author(s): S. Sasaki, T. Yamazaki
  • Journal Title: Physical Review D78 Pages: 14510-14510
  • Peer Reviewed
• [Journal Article] Nucleon Axial Charge in 2+1 flavor Dynamical Lattice QCD with Domain Wall Fermions (2008)
  • Author(s): T. Yamazaki et al.
  • Journal Title: Physical Review Letter 100 Pages: 171602-171602
  • Peer Reviewed
• [Journal Article] Nucleon Form Factors from Quenched Lattice QCD with Domain Wall Fermions (2008)
  • Author(s): S. Sasaki and T. Yamazaki
  • Journal Title: Physical Review D 78 Pages: 14510-14510
  • Peer Reviewed
• [Journal Article] Nucleon Structure with Two Flavors of Dynamical Domain Wall Fermions (2008)
  • Author(s): H.-W. Lin et al.
  • Journal Title: Physical Review D 78 Pages: 14505-14505
  • Peer Reviewed
• [Journal Article] Kl3 semileptonic form factor from 2+1 flavour lattice QCD (2008)
  • Author(s): P.A. Boyle, et. al.
  • Journal Title: Physical Review Letter 100 Pages: 141601-141601
  • Peer Reviewed
• [Journal Article] K13 form factor with N(f)=2+1 dynamical domain wall fermions (2007)
  • Author(s): P.A. Boyle, et. al.
  • Journal Title: Proceedings of Science LAT2007 Pages: 380-380
• [Presentation] (2010)
  • Author(s): 佐々木勝一
  • Organizer: 国際会議BARYONS'2010
  • Place of Presentation: 大阪府、大阪大学吹田キャンパス
  • Year and Date: 2010-12-07
• [Presentation] (2010)
  • Author(s): 佐々木勝一
  • Organizer: 次世代格子ゲージシミュレーション研究会
  • Place of Presentation: 埼玉県和光市、理化学研究所
  • Year and Date: 2010-09-24
• [Presentation] (2010)
  • Author(s): 佐々木勝一
  • Organizer: 核子構造軌道角運動量(OAM)研究会
  • Place of Presentation: 埼玉県和光市、理化学研究所
  • Year and Date: 2010-02-12
• [Presentation] Hyperon vector cbupling f1(0) from 2+1 flavor lattice QCD (2010)
  • Author(s): S.Sasaki
  • Organizer: International conference on the structure of baryons (BARYONS'10)
  • Place of Presentation: 大阪大学
• [Presentation] (2009)
  • Author(s): 佐々木勝一
  • Organizer: 第3回日米物理学会合同核物理分科会
  • Place of Presentation: 米国ハワイ州、ハワイ島
  • Year and Date: 2009-10-17
• [Presentation] Nucleor structure from 2+1 flavor lattice QC (2009)
  • Author(s): S.Sasaki
  • Organizer: 第3回日米物理学会合同核物理分科会
  • Place of Presentation: 米国ハワイ州ハワイ島
  • Year and Date: 2009-10-17
• [Presentation] (2008)
  • Author(s): 佐々木勝一
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 山形大学
  • Year and Date: 2008-09-20
• [Presentation] (2008)
  • Author(s): 佐々木勝一
  • Organizer: 日本物理学会大第63回年会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-24
• [Presentation] 現実的な2+1フレーバー格子QCDによる核子形状因子の研究 (2008)
  • Author(s): 佐々木 勝一
  • Organizer: 日本物理学会第63回年会
  • Place of Presentation: 近畿大学、東大阪市
  • Year and Date: 2008-03-24