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Quark duclear physics in the dual Ginzburg-Landau theory

Research Project

Project/Area Number 11640278
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionOsaka University

Principal Investigator

TOKI Hiroshi  Osaka Univ.RCNP Professor, 核物理研究センター, 教授 (70163962)

Co-Investigator(Kenkyū-buntansha) SUZUKI Katsuhiko  Tokyo Univ.Recearcher, 学振研究員
WATABE Teruaki  Kochi Medical Univ.Assistant, 医学情報センター, 助手
SUGANUMA Hideo  Tokyo Institute of Technology Assistant Professor, 理学研究科, 助教授 (10291452)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2000: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1999: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsDual Ginzburg-Landau theory / Color monopole / Quark confinement / Monopole condensation / Instantons / Deformed oscillator quark model / Baryon excited spectra / Three body confining force / 変形調和振動子
Research Abstract

The Dual Ginzburg-Landau(DGL)tbeory is cosidered to be the effective theory of low energy QCD.We have performed research in wide range in which the foundation of the DGL theory, its application to the low energy pbenomena and the phenomenology of hadronic phenomena are studies.
1. In the DGL theory the color monopole field plays the central role. We considered the insanton as the source of the monopole and showed that when the number of instantons increases, the system becomes the monopole condensed medium. However, the strength of confinement is not enough to reproduce its full strength. On top, we have studied the properties of quarks in the background of instantons and tried to calculate the chiral symmetry breaking and the confinement properties.
2. We have made lattice QCD simulations on the three body confining potentials in the baryonic system. We could show that the confining force is proportional to the minimum length of connection of the three quarks. The strength is found to b … More e the same as the one of the meson system. This finding corresponds to the property of the confining potential in the DGL theory. The lattice QCD showed before that non-diagnoal gluons acquere masses in the abelian gauge and these two facts are the strong support of the DGL theory as the effective theory of low energy QCD.
3. We have studied the excitation spectra of baryons in the deformed oscillator quark model(DOQ). We have shown that the DOQ model is able to reproduce most of the sxcitation energies of baryons except for a few states. This finding indicates that the excited states of baryons are to be explained in terms of the confinement mechanism. We have studied also the electro-magnetic transitions among baryonic excited states. The results were found to be quite similar to the ones of the non-relativistic quark models. We have then started to investigate the effects of the relativistic kinematics. It is also very inceresting to study baryonic systems using the results of the lattice QCD on the three body confineing force. Less

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] T.Watabe, M.Fukushima, H.Toki: "Role of instanton size distributions for dynamical chiral symmetry breaking."Physical Review. D62. 054005 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Fukushima, H.Suganuma, H.Toki: "Quark confinement and extended monopole clustering in the multi-instanton system."Nuclear Physics Proceedings Supplements. 83. 458-460 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Takayama, A.Hosaka, H.Toki: "Systematics of baryon masses and deformed oscillator quark model."Nuclear Physics. A663. 695-698 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] V.Gogokhia, H.Toki, T.Sakai, G.Kluge: "Chiral QCD vacuum energy density in the zero modes enhancement quantum model."International Journal of Modern Physics. A15. 45-64 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] D.Roy, T.Morii, H.Toki, A.I.Titov: "Is there window for a supersoft pomeron in J/psi photoproduction at low energy?"Progress of Theoretical Physics. 103. 747-753 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Watabe et al.: "Role of instanton size distributions for dynamical Chiral symmetry breaking"Phys.Rev.D. 62. 054005 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Fukushima et al.: "Quark confinement and extended monopole clustering in the multi-instanton system."Nucl.Phys.Proc.Supp.. 83. 458-460 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Takayama et al.: "Systematics of baryon masses and deformed oscillator quark model"Nucl.Phys.A. 663. 695-698 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] V.Gogokhia et al.: "Chiral QCD vacuum energy density in the zero modes enhancement quantum model."Int.J.Mod.Phys.A. 15. 45-64 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] D.Roy et al.: "Is there window for a supersoft pomeron in J/psi photoproduction at low energy?"Prog.Theo.Phys.. 103. 747-753 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Watabe,M.Fukushima,H.Toki: "Role of instanton size distributions for dynamical chiral symmetry breaking. "Physical Review. D62. 054-005 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Fukushima,H.Suganuma,H.Toki: "Quark confinement and extended monopole clustering in the multi-instanton system. "Nuclear Physics Proceedings Supplements. 83. 458-460 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Takayama,A.Hosaka,H.Toki: "Systematics of baryon masses and deformed oscillator quark model. "Nuclear Physics. A663. 695-698 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] V.Gogokhia,H.Toki,T.Sakai,G.Kluge: "Chiral QCD vacuum energy density in the zero modes enhancement quantum model. "International Journal of Modern Physics. A15. 45-64 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] D.Roy,T.Morii,H.Toki,A.I.Titov: "Is there window for a supersoft pomeron in J/psi photoproduction at low energy?"Progress of Theoretical Physics. 103. 747-753 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Fukushima,H.Suganuma,H.Toki: "Monopole clustering and color confinement in the multi-instanton system"Physical Review. D60. 094504 1-10 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] K.Suzuki,N.Nakajima,H.Toki: "Analyzing powers in inclusive pion production at high energy and the nucleon spin structure"Modern Physics Letters. A14. 1403-1412 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Koma,H.Suganuma,H.Toki: "Flux-tube ring and glueball properties in the dual Ginzberg-Landau theory"Physical Review. D60. 074024 1-9 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] A.I.Titov,T.-S.H.Lee,H.Toki,O.Streltsova: "Structure of the φ photoproduction amplitude at a few GeV"Physical Review. C60. 035205 1-20 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] E.Marco,E.Oset,H.Toki: "Photoproduction of scalar mesons on protons and nuclei"Physical Review. C60. 015202 1-10 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] E.Marco,S.Hirenzaki,E.Oset,H.Toki: "Radiative decay of ρ^0 and φ mesons in a chiral unitary approach"Physics Letters. B470. 20-26 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Ejiri and H.Toki: "Nucleon-Hadron Many Body Systems"Oxford Science Publications. 344 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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