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Numerical analysis of supersymmetric gauge theory on lattice

Research Project

Project/Area Number 18740130
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionUniversity of Tsukuba

Principal Investigator

TANIGUCHI Yusuke  University of Tsukuba, 大学院・数理物質科学研究科, 講師 (60322012)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,280,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2007: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2006: ¥900,000 (Direct Cost: ¥900,000)
Keywords格子場の理論 / 非摂動論的繰り込み / シュレーディンガー汎関数形式 / QCD結合定数 / Improved action / orbifolding / domain wall fermion / Kaon B parameter / 非摂動論的繰る込み / Schrodinger functional / Wilson fermion / Iwasaki action / Schroedinger functional / quark mass / running coupling
Research Abstract

N=(2,2)超対称Yang-Mills理論をWilsonのゲージ及びフェルミオン作用を用いて、対称性を破る形で格子上に乗せ、摂動論的なfine tuningで超対称性の回復を見ることを目的としていました。しかし実際の数値計算では有限格子間隔の効果が思った以上に大きく、到達可能な格子間隔の範囲では超対称性の回復が見えてこないことが判明しました。そのため、効率よく連続極限をとりつつ繰り込みを行う手法としてのシュレーディンガー汎関数形式の研究に着手しました。今回は特に、カイラル対称性を保つ格子フェルミオンに対するシュレーディンガー汎関数形式の定式化、Kaon B parameterの非摂動論的繰り込み、2+1 flavor QCDにおける非摂動論的なrunning couplingの計算という三つのテーマについて研究を行いました。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (11 results)

All 2008 2007 2006

All Journal Article (7 results) (of which Peer Reviewed: 4 results) Presentation (4 results)

  • [Journal Article] Precise determination of BK and light quark masses in quenched domain-wall QCD2008

    • Author(s)
      Y. Nakamura, S. Aoki, Y. Taniguchi, T. Yoshie
    • Journal Title

      Physical Review D 78 D78

    • NAID

      120007138472

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Non-perturbative renormalization of Nf=2+1 QCD with Schrodinger functional scheme2008

    • Author(s)
      Y. Taniguchi
    • Journal Title

      PoS LATTICE 2008 229

      Pages: 1-7

    • Related Report
      2008 Final Research Report
  • [Journal Article] Precise determination of BK and light quark masses in quenched domai n-wall QCD2008

    • Author(s)
      Y. Nakamura
    • Journal Title

      Physical Review D 78

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Non-perturbative renormalization of Nf=2+1 QCD with SchrOdinger func tional scheme2008

    • Author(s)
      I Y. Taniguchi
    • Journal Title

      PoS LATTICE 2008

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Non-perturbative renormalization of four-quark operators and BK with Schrodinger functional scheme in quenched domain-wall QCD2007

    • Author(s)
      Y. Nakamura, Y. Taniguchi
    • Journal Title

      PoS LATTICE 2007 248

      Pages: 1-7

    • Related Report
      2008 Final Research Report
  • [Journal Article] Schrodinger functional formalism with domain-wall fermion2006

    • Author(s)
      Yusuke Taniguchi
    • Journal Title

      JHEP 10 027

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Schroedinger functional formalism with domain-wall fermion2006

    • Author(s)
      Yusuke Taniguchi
    • Journal Title

      JHEP 10

      Pages: 27-27

    • Related Report
      2006 Annual Research Report
  • [Presentation] Nf=2+1格子QCDにおける非摂動論的な繰り込み2008

    • Author(s)
      谷口裕介
    • Organizer
      日本物理学会2008年秋季大会
    • Place of Presentation
      山形大学
    • Year and Date
      2008-09-21
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Non-perturbative renormalization of Nf=2+1 QCD with Schrodinger functional scheme2008

    • Author(s)
      Y. Taniguchi
    • Organizer
      Lattice2008、Williamsburg
    • Place of Presentation
      Virginia, USA
    • Year and Date
      2008-07-18
    • Related Report
      2008 Final Research Report
  • [Presentation] Non-perturbative renormalization of Nf=2+1 QCD with SchrOdinger func tional scheme2008

    • Author(s)
      Y. Taniguchi
    • Organizer
      Lattice2008
    • Place of Presentation
      Williamsburg, Virginia, Lib A
    • Year and Date
      2008-07-18
    • Related Report
      2008 Annual Research Report
  • [Presentation] Non-perturbative renormalization of quark mass for three flavor QCD with Wilson fermion and RG improved gauge action2007

    • Author(s)
      谷口裕介
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-22
    • Related Report
      2008 Final Research Report 2007 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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