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Theoretical Study of the Quark-Gluon Plasma and Ultrarerativistic Nudeus-Nudeus Collisions

Research Project

Project/Area Number 13440067
Research Category

Grant-in-Aid for Scientific Research (B)

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

Principal Investigator

MATSUI Tetsuo  The University of Tokyo, Graduate School of Arts and Sciences, Professor of Physics, 大学院・総合文化研究科, 教授 (00252528)

Co-Investigator(Kenkyū-buntansha) OHTA Koichi  The University of Tokyo, Graduate School of Arts and Sciences, Professor of Physics, 大学院・総合文化研究科, 教授 (30012496)
FUJII Hirotsugu  The University of Tokyo, Graduate School of Arts and Sciences, Assistant, 大学院・総合文化研究科, 助手 (10313173)
TSUE Yasuhiko  Kochi University, School of Sciences, Associate Professor of Physics, 理学部, 助教授 (10253337)
Project Period (FY) 2001 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥7,800,000 (Direct Cost: ¥7,800,000)
Fiscal Year 2004: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2003: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2002: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2001: ¥3,600,000 (Direct Cost: ¥3,600,000)
KeywordsQCD phase transition / Quark-gluon plasma / chiral phase transition / ultrarelativistic nucleus-nucleus collision / 有限温度・有限密度のQCD / 光円錐量子化 / バリオンのソリトン模型 / QCD / 高エネルギー原子核衝突
Research Abstract

In this research project, we have studied various theoretical problems related to the properties of matter under extreme physical conditions in temperatures and baryon number densities, ranging from the nature of the QCD phase transitions to the signals of the new phase of matter (the quark-gluon plasma) expected to be formed in the course of ultra-relativistic nucleus-nucleus collisions.
We have computed the topological susceptibilities in terms of NJL model supplemented with 't Hooft interaction and obtained a results very similar to the lattice QCD results. We also studied the nature of the chiral phase transition and clarified the role of the hydrodynamic mode near the critical end point (CEP) in the QCD phase diagram on temperature v.s. baryon chemical potential plane as well as in the dynamical scaling behavior. The absorption of high energy charmonium traversing in random color medium was studied in order to access the utility of charmonium as a probe of the quark-gluon plasma and we have shown that the high-energy behavior is qualitatively different from the naive nuclear absorption model.
In addition to these problems, we obtained many important results in related theoretical problems such as connection of Casimir effect to finite temperature problem, topological model of baryons, spontaneous symmetry breaking in light-front quantization method and the application of the variational method in quantum field theory to the dynamics of Base-Einstein condensates.

Report

(5 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (42 results)

All 2005 2004 2003 2002 2001 Other

All Journal Article (26 results) Book (1 results) Publications (15 results)

  • [Journal Article] Dynamic aspect of the chiral phase transition in the mode coupling theory2005

    • Author(s)
      L.Ohnishi, K.Fukushima, K.Ohta
    • Journal Title

      Nucl.Phys.A 748

      Pages: 260-309

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Dynamic aspect of the chiral phase transition in the mode coupling theory2005

    • Author(s)
      K.Ohnishi, K.Fukushima, K.Ohta
    • Journal Title

      Nucl.Phys.A 748

      Pages: 260-309

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] 量子中間子場のVlasov方程式と集団運動2005

    • Author(s)
      松尾衛, 松井哲男
    • Journal Title

      素粒子論研究 111巻5号

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Chiral symmetry in light-cone field theory2004

    • Author(s)
      P.Lenz, K.Ohta, M.Thies, K.Yazaki
    • Journal Title

      Phys.Rev.D 70

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Skyrmions coupled to the electromagnetic field via the gauged Wess-Zumino term2004

    • Author(s)
      M.Ohtani, K.Ohta
    • Journal Title

      Phys.Rev.D 70

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Sigma and hydrodynamic modes along the critical line2004

    • Author(s)
      H.Fujii, M.Ohtani
    • Journal Title

      Phys.Rev.D 70

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Chiral symmetry in light-cone field theory2004

    • Author(s)
      F.Lenz, K.Ohta, M.Thies, K.Yazaki
    • Journal Title

      Phys.Rev.D 70

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Sigma and hydrodynamic modes along the critical line2004

    • Author(s)
      H.Fujii, M.Ohtani
    • Journal Title

      Physical Review D 70

      Pages: 14016-14016

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Mode softening near the critical point within effective approaches to QCD2004

    • Author(s)
      H.Fujii, M.Ohtani
    • Journal Title

      Compact stars ; the quest for new states of dense matter

      Pages: 183-192

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Sigma and hydrodynamic modes along the critical line.2004

    • Author(s)
      H.Fujii, M.Ohtani
    • Journal Title

      Phys.Rev.D 70

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Soft modes at the critical end point in the chiral effective models2004

    • Author(s)
      H.Fujii, M.Ohtani
    • Journal Title

      Progress of Theoretical Physics Supplement 153

      Pages: 157-164

    • NAID

      110001196499

    • Related Report
      2004 Annual Research Report
  • [Journal Article] J/psi suppression in heavy ion collisions by quark momentum diffusion2003

    • Author(s)
      H.Fujii
    • Journal Title

      Physical Review C 67

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Scalar Density fluctuation at the critical end point in the NJL model2003

    • Author(s)
      H.Fuiji
    • Journal Title

      Phys.Rev.D 67

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Quest for the Quark-Gluon Plasma2003

    • Author(s)
      T.Matsui
    • Journal Title

      Prog.Theor.Phys.Suppl. 151

      Pages: 11-20

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] J/psi suppression in heavy ion collisions by quark momentum diffusion2003

    • Author(s)
      H.Fujii
    • Journal Title

      Physical Revew C 67

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Scalar density fluctuation at the critical end point in the NJL model2003

    • Author(s)
      H.Fujii
    • Journal Title

      Physical Review D 67

      Pages: 94018-94018

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Quest for the Quark-Gluon Plasma.2003

    • Author(s)
      T.Matsui
    • Journal Title

      Prog.Theor.Phys.Suppl. 151

      Pages: 11-20

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Superpenetration of a high energy Q Q-bar bound state through random color fields2002

    • Author(s)
      H.Fujii, T.Matsui
    • Journal Title

      Phys.Lett.B 545

      Pages: 82-82

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Penetration of a high energy $Q bar Q$ bound state through SU(N) color background2002

    • Author(s)
      H.Fujii
    • Journal Title

      Nucler Physics A 709

      Pages: 236-236

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Superpenetration of a high energy Q Q-bar bound state through random color fields2002

    • Author(s)
      H.Fujii, T.Matsui
    • Journal Title

      Physics Letters B 545

      Pages: 82-82

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Penetration of a high energy $Q bar Q$ bound state through SU(N) color background2002

    • Author(s)
      H.Fujii
    • Journal Title

      Nuder Physics A 709

      Pages: 236-236

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Foundation of Maxwell's Theory2002

    • Author(s)
      K.Ohta
    • Journal Title

      Monograph (University of Tokyo Press)

      Pages: 332-332

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Topological susceptibility at zero temperature and finite temperature in the Nambu-Jona-Lasinio model2001

    • Author(s)
      K.Fukushima, K.Ohnishi, K.Ohta
    • Journal Title

      Phys.Rev.C 63

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Slope of the topological susceptibility at zero temperature and finite temperature in the Nambu-Jona-Lasinio model2001

    • Author(s)
      K.Fukushina, K.Ohnishi, K.Ohta
    • Journal Title

      Phys.Lett.B 514

      Pages: 200-203

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Explicit conversion from the Casimir force to Planck's law of radiation2001

    • Author(s)
      K.Fukushima, K.Ohta
    • Journal Title

      Phisica A 299

      Pages: 455-460

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Slope of the topological susceptibility at zero temperature and finite temperature in the Nambu-Jona-Lasinio model2001

    • Author(s)
      K.Fukushima, K.Ohnishi, K.Ohta
    • Journal Title

      Phys.Lett.B 514

      Pages: 200-203

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] マクスウェル理論の基礎2002

    • Author(s)
      太田浩一
    • Total Pages
      332
    • Publisher
      東京大学出版会
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] T.Matsui: "Quest for the Quark-Gluon Plasma"Progress of Theoretical Physics Supplement. 151. 11-20 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Fujii: "Scalar density fluctuation at the critical end point in the Nambu--Jona-Lasinio model"Physical Review. D67. 094018-1 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Fujii: "J/psi suppression in heavy ion collisions by quark momentum diffusion"Physical Review. C67. 031901 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Fujii: "Quarkonium in Heavy Ion Collisions"Progress of Theoretical Physics Supplement. 151. 127-132 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 松尾 衛, 松井哲男: "量子中間子場のVlasov方程式"素粒子論研究. 108. E17-E20 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Fujii, T.Matsui: "Superpenetration of a high energy QQ-bar bound state through random color fields"Physics Letters B. 545. 82-90 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Fujii: "PENETRATION OF A HIGH-ENERGY QANTI-Q BOUND STATE THROUGH SU(N) COLOR BACKGROUND"Nuclear Physics A. 709. 236-250 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Matsui: "Variational approach to dynamics of quantum fields"QCD Perspectives on Hot and Dense Matter. 419-431 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Fujii: "J/PSI SUPPRESSION IN HEAVY ION COLLISIONS BY QUARK MOMENTUM DIFFUSION"Physical Review C. (in press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 太田浩一: "マクスウェル理論の基礎-相対論と電磁気学"東京大学出版会. 344 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Ohta, et al.: "Topological susceptibility at zero temperature and finite temperature in the Nambu-Jona-Lasinio model"Physical Review C. 63. 045203-1-045203-9 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Ohta, et al.: "Slope of the topological susceptibility at zero temperature and finite temperature in the Nambu-Jona-Lasinio model"Physics Letters B. 514. 200-203 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Ohta, et al.: "Explicit conversion from the Casimir force to Planck's law of radiation"Physica A. 299. 455-460 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Matsui: "Variational approach to dynamics of quantum fields"Proceedings of Cargese International School on QCD at extreme temperature and density. (in press).

    • Related Report
      2001 Annual Research Report
  • [Publications] 松井哲男: "古くて新しい物質相-クォーク・グルオンプラズマ"数理科学. 39巻3号. 13-21 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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