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Nucleon structure in domain-wall-fermion lattice QCD

Research Project

Project/Area Number 15K05064
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

Ohta Shigemi  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, 准教授 (50183025)

Project Period (FY) 2015-10-21 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords場の量子論 / 格子上の場の量子論 / ハドロン物理学 / 素粒子現象論 / 数値物理学 / スーパーコンピューター / 格子量子色力学 / ハドロン / 核子 / アイソベクトル極性流荷電 / アイソベクトル軸性流荷電 / アイソベクトルテンソル結合 / アイソベクトルスカラー結合 / スーパーコンピューター数値計算 / 格子QCD / ドメインウォール法 / 大規模数値計算 / 標準模型 / 核子構造 / 数値計算 / 極性ベクトル流 / 軸性ベクトル流 / 形状因子 / 中性子寿命 / 構造関数
Outline of Final Research Achievements

Nucleon structure calculations using three 2+1-flavor domain-wall fermion lattice QCD ensembles with a lattice cutoff momentum of about 1.38GeV/c and pion mass of about 249 and 172 MeV and another cutoff momentum of about 1.73GeV/c and pion mass of almost physical 139MeV were advanced. In the former two ensembles the calculations of nucleon mass, isovector vector and axialvector charges, and isovector tensor and scalar couplings were completed and a full paper reporting these were published. Calculations of the same observables in the last ensemble progressed: for the first time in the world an influence from nucleon excited state was confirmed in the isovector vector charge. Also the calculated value of the isovector axialvector charge slightly undershoots the experimental value.

Academic Significance and Societal Importance of the Research Achievements

核子は我々人類やその生存環境を形作る様々な元素の基本構成要素で、その質量やアイソベクトル極性・軸性荷電はその存在量や構成比を決定する物理量なので、これらについての理論的理解を深めることは我々の存在の宇宙論的進化の歴史を理解し、将来を予測するのに役立つ。またアイソベクトルテンソル・スカラー両結合の値は素粒子の標準模型を超える新物理学の探索に役立つ。

Report

(6 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (29 results)

All 2020 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (10 results) Journal Article (10 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 10 results,  Open Access: 10 results,  Acknowledgement Compliant: 3 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (2 results)

  • [Int'l Joint Research] ブルックヘイヴン国立研究所/コロンビア大学/コネティカット大学(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] エディンバラ大学/サウサンプトン大学(英国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Brookhaven National Laboratory/Columbia University/Stony Brook University(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] University of Edinburgh/University of Southampton(英国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] コロンビア大学/ブルックヘイヴン国立研究所(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] エディンバラ大学/サウサンプトン大学(英国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] ブルックヘイヴン国立研究所/コロンビア大学(米国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] エディンバラ大学/サウサンプトン大学(英国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] ブルックヘイヴン国立研究所/コロンビア大学(米国)

    • Related Report
      2015 Research-status Report
  • [Int'l Joint Research] エディンバラ大学/サウサンプトン大学(英国)

    • Related Report
      2015 Research-status Report
  • [Journal Article] Nucleon mass and isovector couplings in 2+1-flavor dynamical domain-wall lattice QCD near physical mass2020

    • Author(s)
      Michael Abramczyk, Thomas Blum, Taku Izubuchi, Chulwoo Jung, Meifeng Lin, Andrew Lytle, Shigemi Ohta, Eigo Shintani
    • Journal Title

      Physical Review D

      Volume: 101 Issue: 3 Pages: 034510-034510

    • DOI

      10.1103/physrevd.101.034510

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Nucleon isovector charges from physical mass domain-wall QCD2020

    • Author(s)
      Shigemi Ohta
    • Journal Title

      Proceedings of Science

      Volume: LATTICE2019 Pages: 051-051

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Nucleon axial charge in dmain-wall QCD with physical mass2019

    • Author(s)
      Ohta Shigemi
    • Journal Title

      Proceedings of Science

      Volume: Lattice2018 Pages: 128-128

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nucleon structure from 2+1-flavor domain-wall QCD2018

    • Author(s)
      Ohta Shigemi
    • Journal Title

      EPJ Web of Conferences

      Volume: 175 Pages: 06012-06012

    • DOI

      10.1051/epjconf/201817506012

    • NAID

      130008153660

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nucleon structure from 2+1-flavor dynamical DWF ensembles2016

    • Author(s)
      Michael Abramczyk, Meifeng Lin, Andrew Lytle, Shigemi Ohta
    • Journal Title

      Proceedings of Science

      Volume: LATTICE2016 Pages: 150-150

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Some nucleon isovector obsesrvables from 2+1-flavor domain-wall QCD at physical mass2016

    • Author(s)
      Shigemi Ohta
    • Journal Title

      Proceedings of Science

      Volume: LATTICE2015 Pages: 124-124

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Domain wall QCD with physical quark masses2016

    • Author(s)
      Tom Blum, Peter Boyle, Norman Christ, Julius Frison, Nicolas Garron, Robert Hudspith, Taku Izubuchi, Tadeus Janowski, Chulwoo Jung, Andreas Juettner, Chris Kelly,Richard Kenway, Christoph Lehner, Maria Marinkovic, Robert Mawhinney, Greg McGlynn, David Murphy, Shigemi Ohta, Antonin Portelli, Chris Sacrajda
    • Journal Title

      Physical Review D

      Volume: 93 Issue: 7 Pages: 074505-074505

    • DOI

      10.1103/physrevd.93.074505

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Low energy constants of SU(2) partially quenched chiral perturbation theory from Nf f =2+1 domain wall QCD2016

    • Author(s)
      P.A. Boyle, N.H. Christ, N. Garron, C. Jung, A. Juttner, C. Kelly, R.D. Mawhinney, G. McGlynn , D.J. Murphy , S. Ohta, A. Portelli, C.T. Sachrajda
    • Journal Title

      Physical Review D

      Volume: 93 Issue: 5 Pages: 54502-54502

    • DOI

      10.1103/physrevd.93.054502

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Initial nucleon structure results with chiral quarks at the physical point2015

    • Author(s)
      S. Syritsyn, T. Blum, M. Engelhardt, J. Green, T. Izubuchi, C. Jung, S. Krieg, M. Lin, S. Meinel, J. Negele, S. Ohta, A. Pochinsky and E. Shintani
    • Journal Title

      Proceedings of Science

      Volume: LATTICE2014 Pages: 134-134

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Systematics analyses on nucleon isovector observables in 2+1-flavor dynamical domain-wall lattice QCD near physical mass2015

    • Author(s)
      S. Ohta
    • Journal Title

      Proceedings of Science

      Volume: LATTICE2014 Pages: 149-149

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Nucleon isovector axialvector charge from 2+1-flavor dynamical domain-wall lattice QCD at physical mass2020

    • Author(s)
      太田滋生
    • Organizer
      日本物理学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Hadron structure and transition from lattice QCD using supercomputers2019

    • Author(s)
      Shigemi Ohta
    • Organizer
      Supercomputing Workshop, National Supercompuer Center Jinan, Shangdong, China, December 26-28, 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nucleon structure from 2+1-flavor domain-wall QCD2019

    • Author(s)
      太田滋生
    • Organizer
      日本物理学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Nucleon structure from domain-wall lattice QCD at physical mass2019

    • Author(s)
      太田滋生
    • Organizer
      日本物理学会2019年春季年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Nucleon structure from domain-wall lattice QCD at physical mass2018

    • Author(s)
      太田滋生
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Nucleon structure from 2+1-flavor domain-wall QCD2017

    • Author(s)
      Shigemi Ohta
    • Organizer
      Lattice 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Nucleon structure from 2+1-flavor domain-wall lattice QCD2017

    • Author(s)
      Shigemi Ohta
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Remarks] Shigemi Ohta

    • URL

      https://quark.phy.bnl.gov/~ohta/

    • Related Report
      2019 Annual Research Report
  • [Remarks]

    • URL

      https://quark.phy.bnl.gov/~ohta/

    • Related Report
      2018 Research-status Report

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Published: 2015-10-21   Modified: 2022-02-21  

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