Standard model with lattice field theory

• Project/Area Number: 18540250
• 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: University of Tsukuba
• Principal Investigator: KURAMASHI Yoshinobu University of Tsukuba, 大学院・数理物質科学研究科, 准教授 (30280506)
• Project Period (FY): 2006 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,990,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥690,000); Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2006: ¥1,000,000 (Direct Cost: ¥1,000,000)
• Keywords: 格子場の理論 / 量子色力学(QCD) / CPの破れ / 重いクォーク / Strong CP問題 / 格子QCD / チャームクォーク / 相対論的定式化 / 量子色力学 / NEDM / strong CP / 中性子電気双極子能率(NEDM) / strong CP問題

Research Abstract

Lattice QCD calculation of hadron matrix elements was applied to investigate the CP violation. After demonstrating the effectiveness of our relativistic heavy quark action by a numerical test, we started to calculate physical quantities associated with heavy quarks including the polarization effects of up, down, strange quarks. For the neutron electric dipole moments, we compared the results obtained with the external electric method both in the quenched approximation and the two flavor QCD.

Research Products

• [Journal Article] Heavy-light mesons in 2+1 flavor lattice QCD (2009)
  • Author(s): Y.Namekawa for PACS-CS Collaboration
  • Journal Title: Proceedings of Science LAT2009 Pages: 111-111
• [Journal Article] Full QCD calculation of neutronelectric dipole moment with the external electric field method (2008)
  • Author(s): E. Shintani, S. Aoki, Y. Kuramashi
  • Journal Title: Physical Review D78 Pages: 14503-14503
  • NAID: 120007138601
  • Peer Reviewed
• [Journal Article] Full QCD calculation of neutron electric dipole moment with the external electric field method (2008)
  • Author(s): E.Shintani, S.Aoki and Y.Kuramashi
  • Journal Title: Physical Review D78 (014503)
  • NAID: 120007138601
  • Peer Reviewed
• [Journal Article] Full QCD calculation of neutron electric dipole moment with the external electric field method (2008)
  • Author(s): E.Shintani, S. Aoki and Y. Kuramashi
  • Journal Title: Physical Review D78 Pages: 14503-14503
  • NAID: 120007138601
  • Peer Reviewed
• [Journal Article] Neutron electric dipole moment with external electric field method in lattice QCD (2007)
  • Author(s): E. Shintani, S. Aoki, N. Ishizuka, K. Kanaya, Y. Kikukawa, Y. Kuramashi, M. Okawa, A. Ukawa, T. Yoshie
  • Journal Title: Physical Review D75 Pages: 34507-34507
  • Peer Reviewed
• [Journal Article] First nonperturbative test of a relativistic heavy quark action in quenched lattice QCD (2007)
  • Author(s): Y. Kayaba, S. Aoki, M. Fukugita, Y. Iwasaki, K. Kanaya, Y. Kuramashi, M. Okawa, A. Ukawa, T. Yoshie
  • Journal Title: Journal of High Energy Physics 02 Pages: 19-19
  • Peer Reviewed
• [Journal Article] Neutron el ectric dipole moment with external electric field method in lattice QCD (2007)
  • Author(s): E. Shintani, S. Aoki, N. Ishizuka, K. Kanaya, Y. Kikukawa, Y. Kuramashi, M. Okawa, A. Ukawa, T. Yoshie
  • Journal Title: Physical Review D75 034507
  • Peer Reviewed
• [Journal Article] First nonperturbative test of a relativistic heavy quark action in quenched lattice QCD (2007)
  • Author(s): Y. Kayaba, S. Aoki, M. Fukugita, Y. Iwasaki, K. Kanaya, Y. Kuramashi, M. Okawa, A. Ukawa, T. Yoshie
  • Journal Title: Journal of High Energy Physics 0702, 019
  • Peer Reviewed
• [Journal Article] Neutron electric dipole moment with external electric field method in lattice QCD (2007)
  • Author(s): E.Shintani et al.
  • Journal Title: Physical Review D 75 Pages: 34507-34507
• [Journal Article] First nonperturbative test of a relativistic heavy quark action in quenched lattice QCD (2007)
  • Author(s): Y.Kayaba et al.
  • Journal Title: Journal of High Energy Physics 02 Pages: 19-19
• [Journal Article] Calculation of neutron EDM in quenched and full QCD (2006)
  • Author(s): E. Shintani, S. Aoki, N. Ishizuka, K. Kanaya, Y. Kuramashi, M. Okawa, A. Ukawa, T. Yoshie
  • Journal Title: Proceedings of Science LAT 2006 Pages: 123-123
• [Presentation] Lattice QCD calculation of neutron electric dipole moment (2009)
  • Author(s): Yoshinobu Kuramashi
  • Organizer: INT Workshop on Electric Dipole Moments and CP Violation
  • Place of Presentation: Seattle, USA
• [Presentation] Lattice QCD calculation of neutron electric dipole moment (2007)
  • Author(s): Y. Kuramashi
  • Organizer: Electric Dipole moments and CP Violation
  • Place of Presentation: INT, Seattle(招待講演)
• [Presentation] Lattice QCD calculation of neutron electric dipole moment (2006)
  • Author(s): Yoshinobu Kuramashi
  • Organizer: The IVth International Conference on Quarks and Nuclear Physics
  • Place of Presentation: Madrid, Spain
• [Presentation] Lattice QCD calculation of neutron electric dipole moment (2006)
  • Author(s): Y. Kuramashi
  • Organizer: The IVth International Conference on Quarks and Nuclear Physics
  • Place of Presentation: Madrid, Spain(招待講演)