Quasi-particle picture of quarks in quark-gluon plasma

• Project/Area Number: 19840030
• Research Category: Grant-in-Aid for Young Scientists (Start-up)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Osaka University
• Principal Investigator: KITAZAWA Masakiy Osaka University, 大学院・理学研究科, 助教 (10452418)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥2,756,000 (Direct Cost: ¥2,390,000、Indirect Cost: ¥366,000); Fiscal Year 2008: ¥1,586,000 (Direct Cost: ¥1,220,000、Indirect Cost: ¥366,000); Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥1,170,000)
• Keywords: クォーク / QGP / 格子ゲージ理論 / 準粒子 / 相転移 / クォーク・グルオン・プラズマ / 有限温度場の理論 / 相対論的原子核衝突 / スペクトル関数 / 質量の起源 / 量子色力学 / 格子QCD / 湯川模型 / 有限温度 / 熱質量 / 第一原理計算

Research Abstract

格子QCDおよび有効模型を用い、クォーク・グルオン・プラズマ状態におけるクォークの準粒子描像を調べた。格子QCDによる解析で、クォークの熱的質量の値を第一原理的に求めるのに成功したほか、有効模型による解析で質量獲得の背景にある物理を探った

Research Products

• [Journal Article] Physical Review D (2008)
  • Author(s): Masakiyo Kitazawa, Teiji Kunihiro, Kazuya Mitsutani, and Yukio Nemoto
  • Journal Title: 77
  • Peer Reviewed
• [Journal Article] Physics Letters B (2008)
  • Author(s): Masakiyo Kitazawa, Dirk H. Rischke, and Igor A. Shovkovy
  • Journal Title: 663
  • Peer Reviewed
• [Journal Article] Bound diquarks and their Bose-Einstein condensation in strongly coupled quark matter (2008)
  • Author(s): M. Kitazawa, D. Rischke, I, Shovkovy
  • Journal Title: Physics Letters 633 Pages: 228-233
  • Peer Reviewed
• [Journal Article] Measurement of Shear Viscosity in Lattice Gauge Theory Without Kubo Formula (2008)
  • Author(s): M. Kitazawa, M. Asakawa, B. Muller, C. Nonoka
  • Journal Title: Proceedings of Science LATTICE2008 Pages: 183-189
• [Journal Article] Novel Quasi-Particle Picture Of Massless And Massive Quarks Coupled With A Massive Boson At Finite Temperature And Its Effect On The Dilepton (2008)
  • Author(s): K. Mitsutani, M. Kitazawa, T. Kunihiro, Y. Nemoto
  • Journal Title: Progress of Theoretical Physics Supplelent 174 Pages: 262-265
  • Peer Reviewed
• [Journal Article] Spectral properties of massless and massive quarks coupled with massive boson at finite temperature (2008)
  • Author(s): M. Kitazawa
  • Journal Title: Physical Review D 77
  • Peer Reviewed
• [Journal Article] Physics Letters B (2007)
  • Author(s): Frithjof Karsch and Masakiyo Kitazawa
  • Journal Title: 658
  • Peer Reviewed
• [Journal Article] Spectral properties of quarks above Tc in quenched lattice QCD (2007)
  • Author(s): F. Karsch
  • Journal Title: Physics Letters B658 Pages: 45-49
  • Peer Reviewed
• [Presentation] strongly-coupled Quark Matter (2008)
  • Organizer: at Second Asian Triangle Heavy-Ion Conference (ATHIC)
  • Place of Presentation: University of Tsukuba, Tsukuba, Japan
• [Presentation] Diquark Excitations in Dense and Hot Quark Matter (2008)
  • Organizer: at EMMI workshop, Quark-Gluon Plasma meets Cold Atoms (QGPmCA2008)
  • Place of Presentation: GSI, Darmstadt, Germany
• [Presentation] Lattice QCD and Hot Quarks (2008)
  • Organizer: at Hot Quarks 2008 ~Workshop for Young scientists on the physics of ultrarelativistc nucleus-nucleus collisions~
  • Place of Presentation: Aspen Lodge, Estes Park, Colorado, USA
• [Presentation] 高温・高密度QCDの相構造と物性現象 (2008)
  • Organizer: KEK研究会『J-PARC の物理 : ハドロン・原子核研究の新しい局面』
  • Place of Presentation: KEK素粒子原子核研究所
• [Presentation] Pre-critical Phenomena of Color Superconductivity (2008)
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学
• [Presentation] strongly-coupled Quark Matter (2008)
  • Author(s): M. Kitazawa
  • Organizer: Second Asian Triangle Heavy-Ion. Conference (ATHIC)
  • Place of Presentation: University of Tsukuba, Tsukuba, Japan
• [Presentation] 格子QCDを用いたQGP相におけるクォークの準粒子描像の研究 (2007)
  • Author(s): F. Karsch
  • Organizer: 日本物理学会 第62回年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-24
• [Book] 高密度クォーク物質の強結合性とカラー超伝導(Vol.53, No.2)
  • Publisher: 原子核研究