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Study of pentaquark and meson-baryon scattering with quark-quark correlations

Research Project

Project/Area Number 17540264
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionSophia University

Principal Investigator

SHIMIZU Kiyotaka  Sophia University, 理工学部, 教授 (00143363)

Co-Investigator(Kenkyū-buntansha) TAKEUCHI Sachiko  日本社会事業大学, 社会福祉学部, 教授 (90251503)
INOUE Takashi  上智大学, 理工学部, 助教 (80407353)
Co-Investigator(Renkei-kenkyūsha) TAKEUCHI Sachiko  日本社会事業大学, 社会福祉学部, 教授 (90251503)
Project Period (FY) 2005 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2006: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2005: ¥800,000 (Direct Cost: ¥800,000)
Keywords原子核(理論) / A(1405) / バリオンーメソン散乱 / Roper共鳴 / クォークモデル / 連続状態に埋もれた束縛状態 / ペンタクォーク / Δ-粒子 / バリオン-メソン散乱 / 共鳴と複素スケーリング法 / クォーク・クラスター模型 / クォーク相関 / Λ(1405) / SU(3)バリオン / SU(3)メソン / ペンタウォーク / 中間子-バリオン散乱 / ラムダ(1405)
Research Abstract

Spring8において、質量がおよそ1540MeV、崩壊幅が20MeV程度のペンタクォークΘ+と呼ばれる粒子の発見が報告され、これに対して構成子クォーク模型を使って考察した結果、単純な模型では記述することは非常に難しいことを示した。現在は実験的にもいくつかのグループから問題点が指摘されている。同様に、クォーク5体系と示唆されているΛ(1405)に対しても、バリオン-メソン散乱に、「連続状態中の束縛状態」を含む、準相対論的散乱問題を扱った。

Report

(5 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (18 results)

All 2009 2008 2007 2006 2005

All Journal Article (14 results) (of which Peer Reviewed: 5 results) Presentation (4 results)

  • [Journal Article] Λ(1405) resonance in baryon-meson scattering with a bound state embedded in the continuum2009

    • Author(s)
      Sachiko Takeuchi and Kiyotaka Shimizu
    • Journal Title

      Physical Review C79 045204

      Pages: 1-12

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Λ(1405) as a resonance in the baryon-meson scattering coupled to the q3 state in a quark model2007

    • Author(s)
      Sachiko Takeuchi and Kiyotaka Shimizu
    • Journal Title

      Physical Review C76 035204

      Pages: 1-11

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] A(1405)as a Resonance in the baryon meson scattering coupled to the q^3 state in a quark model2007

    • Author(s)
      S. Takeuchi, K. Shimizu
    • Journal Title

      Physical Review C76

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] X(3872):aq-bar q c-bar c molecule with attractive diquarks2007

    • Author(s)
      S. Takeuchi, V., E. Lyubovitskij, Th. Gutsche, A. Faessler
    • Journal Title

      Nuclear Physics A790

      Pages: 502-505

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Pentaquark model of the negative parity Lambda(1405)2007

    • Author(s)
      T.Inoue
    • Journal Title

      Proceedings of YKIS Seminar on New Frontiers in QCD. Kyoto, Japan, Dec. 2006. (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A Pentaquark model for Lambda(1405)2007

    • Author(s)
      T.Inoue
    • Journal Title

      Proceedings of 18^<th> International IUPAP Conference on Few-Body Problems in Physics. San Paulo, Brazil, Aug. 2006. (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] P-wave pentaquark and its decay in the quark model with instanton induced interaction2006

    • Author(s)
      T.Shinozaki, M.Oka, S.Takeuchi
    • Journal Title

      Physical Review D74

      Pages: 54029-54029

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Ground State Baryon Masses in the Perturbative Chiral Quark Model2006

    • Author(s)
      T.Inoue, V.E.Lyubovitskij, T.Gutsche, A.Faessler
    • Journal Title

      International Journal of Modern Physics E15

      Pages: 121-142

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Pentaquark as a NK* Bound State with TJ = 0 3/22005

    • Author(s)
      Sachiko Takeuchi and Kiyotaka Shimizu
    • Journal Title

      Physical Review C71 062202

      Pages: 1-5

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Pentaquark as a NK^* Bound State with TJ^p=0 3/2^-2005

    • Author(s)
      S.Takeuchi, K.Shimizu
    • Journal Title

      Physical Review C71

      Pages: 0622021-0622025

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Effects of Instanton Induced Interaction on the Pentaquark2005

    • Author(s)
      T.Shinozaki, M.Oka, S.Takeuchi
    • Journal Title

      Physical Review D71

      Pages: 0740251-0740259

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Fixing Two-Nucleon Weak-Axial Coupling L_<1A> from μ^-d Capture2005

    • Author(s)
      J.W.Chen, T.Inoue, X.Ji, Y.Li
    • Journal Title

      Physical Review C72

      Pages: 0610011-0610014

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Magnetic Moments of S-shell Pentaquarks in the Additive Quark Model2005

    • Author(s)
      T.Inoue, V.E.Lyubovitskij, T.Gutsche, A.Faessler
    • Journal Title

      Progress of Theoretlcal Physics 113

      Pages: 801-808

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Mass Spectrum of the J^P=1/2^- and 3/2^- Pentaquark Antidecuplets in the Perturbative Chiral Quark Model2005

    • Author(s)
      T.Inoue, V.E.Lyubovitskij, T.Gutsche, A.Faessler
    • Journal Title

      International Journal of Modern Physics E14

      Pages: 995-1016

    • Related Report
      2005 Annual Research Report
  • [Presentation] Lambda(1405) in a baryon-meson scattering described from a quark-model Viewpoint.2008

    • Author(s)
      S. Takeuchi, K. Shimizu
    • Organizer
      International Symposium on strangeness in Nuclear and Hadronic Systems
    • Place of Presentation
      Sendai, Japan
    • Year and Date
      2008-12-14
    • Related Report
      2008 Annual Research Report
  • [Presentation] Λ(1405) in a baryon meson scattering described from a quark-model viewpoint2008

    • Author(s)
      Sachiko Takeuchi and Kiyotaka Shimizu
    • Organizer
      Proceedings of the Sendai International Symposium on Strangeness in Nuclear and Hadronic Systems
    • Place of Presentation
      Sendai
    • Related Report
      2008 Final Research Report
  • [Presentation] Λ(1405) as a resonance in the baryon meson scattering coupled to the q3 state in a quark model2007

    • Author(s)
      Sachiko Takeuchi and Kiyotaka Shimizu
    • Organizer
      Proceedings of the 11th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon
    • Place of Presentation
      IKP, Juelich, Germany
    • Related Report
      2008 Final Research Report
  • [Presentation] A(1405)as a Resonance in the baryon meson scattering coupled to the q^3 state in a quark model2007

    • Author(s)
      S. Takeuchi
    • Organizer
      MENU2007
    • Place of Presentation
      IKP,Julich,Germany
    • Related Report
      2007 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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