New aspect of particle physics using lattice chiral fermion

• Project/Area Number: 18740167
• 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 High Energy Accelerator Research Organization, 素粒子原子核研究所, 助教 (50399432)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥270,000); Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2007: ¥1,200,000 (Direct Cost: ¥1,200,000); Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
• Keywords: 素粒子論 / 格子QCD / カイラル対称性 / 大規模数値シミュレーション / 素粒子物理学 / 計算物理

Research Abstract

厳密なカイラル対称性を持つフェルミオン形式で記述されるクォーク場の動的効果を取り入れた数値シミュレーションを行い、中性K 中間子の混合振幅の決定、S-parameterの決定等を行った。これとは別に、QCDのゲージ配位にQEDの配位を結合し、従来の格子QCDでは評価できないupとdownクォークの質量差をより現実的な2-フレーバー理論で予言した。

Research Products

• [Journal Article] for JLQCD CollaborationH, "S-parameter and pseudo Nambu Goldstone boson mass fromlattice QCD" (2008)
  • Author(s): E. ShintaniH, HS. AokiH, HH. FukayaH, HS.HashimotoH, HT. KanekoH, HH. MatsufuruH, HT. OnogiH, HUN. YamadaUH
  • Journal Title: for JLQCD CollaborationH, "S-parameter and pseudo Nambu Goldstone boson mass fromlattice QCD" 101 Pages: 202004-202004
  • Peer Reviewed
• [Journal Article] "BK with two flavors of dynamical overlap fermions" (2008)
  • Author(s): HS. AokiH, HH. FukayaH, HS. HashimotoH, HJ. NoakiH, HT. KanekoH, HH. MatsufuruH, HT.OnogiH, HUN. YamadaUH
  • Journal Title: Physical Review D77 Pages: 94503-94503
  • Peer Reviewed
• [Journal Article] BK with two flavors of dynamical overlap fermions (2008)
  • Author(s): JLQCD Collaboration
  • Journal Title: Phys. Rev. D 77 Pages: 94503-94503
  • Peer Reviewed
• [Journal Article] Two-flavor QCD simulation with exact chiral symmetry (2008)
  • Author(s): JLQCD Collaboration
  • Journal Title: Phys. Rev. D 78 Pages: 14508-14508
  • Peer Reviewed
• [Journal Article] Convergence of the chiral expansion in two-flavor lattice QCD (2008)
  • Author(s): JLQCD and TWQCD Collaborations
  • Journal Title: Phys. Rev. Lett. 101 Pages: 202004-202004
  • Peer Reviewed
• [Journal Article] S-parameter and pseudo-Nambu-Goldstone boson mass from lattice QCD (2008)
  • Author(s): JLQCD Collaboration
  • Journal Title: Phys. Rev. Lett. 101 Pages: 242001-242001
  • Peer Reviewed
• [Journal Article] Nucleon sigma term and strange quark content from lattice QCD with exact chiral symmetry (2008)
  • Author(s): JLQCD Collaboration
  • Journal Title: Phys. Rev. D 78 Pages: 54502-54502
  • Peer Reviewed
• [Journal Article] Bk with two flavors of dynamical overlap fermions (2008)
  • Author(s): S. Aoki
  • Journal Title: Physical Review D(掲載決定) (未定)
  • Peer Reviewed
• [Journal Article] Lattice study of meson correlators in the epsilon-regime of two-flavor QCD (2008)
  • Author(s): H. Fukaya
  • Journal Title: Physical Review D 77 Pages: 74503-74503
  • Peer Reviewed
• [Journal Article] HThomas BlumH, HTakumi DoiH, HMasashi HayakawaH, HTaku IzubuchiH, HUNorikazu YamadaUH (2007)
  • Author(s): HThomas BlumH, HTakumi DoiH, HMasashi HayakawaH, HTaku IzubuchiH, HUNorikazu YamadaUH
  • Journal Title: Physical Review D76 Pages: 114508-114508
  • Peer Reviewed
• [Journal Article] Determination of light quark masses from the electromagnetic splitting of pseudoscalar meson masses computed with two flavors of domain wall fermions (2007)
  • Author(s): Thomas Blum
  • Journal Title: Physical Review D 76 Pages: 114508-114508
  • Peer Reviewed
• [Journal Article] Two-flavor lattice QCD in the epsilon-regime and chiral Random Matrix Theory (2007)
  • Author(s): H. Fukaya
  • Journal Title: Physical Review D 76 Pages: 54503-54503
  • Peer Reviewed
• [Journal Article] Charm as a domain wall fermion in quenched lattice QCD (2006)
  • Author(s): Norikazu Yamada
  • Journal Title: Physical Review D74 Pages: 114506-114506
• [Journal Article] Mobility edge and locality of the overlap-Dirac operator with and without dynamical overlap fermions (2006)
  • Author(s): Norikazu Yamada
  • Journal Title: Proceedinas of Science LAT2006 Pages: 60-60
• [Journal Article] Two-flavor lattice QCD simulation in the epsilon-regime with exact chiral symmetry
  • Author(s): H.Fukaya
  • Journal Title: Physical Review Letter (掲載決定)
• [Presentation] "シュレディンガー汎関数を用いた10フレーバーQCDにおける結合定数のスケール依存性の計算" (2009)
  • Author(s): 山田 憲和
  • Organizer: 日本物理学会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-27
• [Presentation] シュレディンガー汎関数を用いた10フレーバーQCDにおける結合定数のスケール依存性の計算 (2009)
  • Author(s): 山田憲和
  • Organizer: 日本物理学会「第64回年次大会」
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-27
• [Presentation] "Pseudo-NG boson mass and S-parameter from lattice QCD" (2008)
  • Author(s): 山田 憲和
  • Organizer: 日本物理学会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-24
• [Presentation] Pseudo-NG boson mass and S-parameter from lattice QCD (2008)
  • Author(s): 山田憲和
  • Organizer: 日本物理学会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-24
• [Presentation] CP violation in KO-KObar mixing (2007)
  • Author(s): 山田憲和
  • Organizer: シンポジウム「未来の素粒子・原子核数値シミュレーション」
  • Place of Presentation: つくば国際会議場
  • Year and Date: 2007-12-19
• [Presentation] BK with dynamical overlap fermions and overview (2007)
  • Author(s): 山田憲和
  • Organizer: Mini-workshop on Lattice QCD
  • Place of Presentation: National Taiwan Univ.
  • Year and Date: 2007-11-23
• [Presentation] "Lattice calculation of vacuum polarization" (2007)
  • Author(s): 山田 憲和
  • Organizer: Workshop "Towards the precise prediction of CP violation"
  • Place of Presentation: 京都大学基礎物理学研究所
  • Year and Date: 2007-10-22
• [Presentation] Lattice calculation of vacuum polarization (2007)
  • Author(s): 山田憲和
  • Organizer: Workshop" Towards the precise prediction of CP violation"
  • Place of Presentation: 京都大学基礎物理学研究所
  • Year and Date: 2007-10-22
• [Presentation] "BK with dynamical overlap fermions" (2007)
  • Author(s): 山田 憲和
  • Organizer: 日本物理学会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-21
• [Presentation] BK with dynamical overlap fermions (2007)
  • Author(s): 山田憲和
  • Organizer: 日本物理学会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-21
• [Presentation] "BK with dynamical overlap fermions" (2007)
  • Author(s): 山田 憲和
  • Organizer: International Conference "Lattice 2007"
  • Place of Presentation: レーゲンズブルグ大学(ドイツ)
  • Year and Date: 2007-08-02
• [Presentation] BK with dynamical overlap fermions (2007)
  • Author(s): 山田憲和
  • Organizer: International conference "Lattice 2007"
  • Place of Presentation: レーゲンスブルグ大学
  • Year and Date: 2007-08-02
• [Remarks]
  • URL: http://www.kek.jp/ja/news/press/2007/supercomputer2.html