Condensed matter physics of QCD at nonzero temperature

• Project/Area Number: 21740182
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Osaka University
• Principal Investigator: KITAZAWA Masakiyo 大阪大学, 大学院・理学研究科, 助教 (10452418)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: クォーク / QGP / 格子QCD / 量子色力学 / 相対論的重イオン衝突 / ゆらぎ / QCD相図 / 輸送係数 / 久保公式 / 場の理論 / 格子ゲージ理論 / 準粒子 / 相対論的重イオン衝突実験 / 熱質量 / 緩和時間 / 格子CD / クォーク・グルオン・プラズマ / スペクトル関数

Research Abstract

We investigated spectral properties of quarks in the deconfined phase using lattice QCD Monte Carlo simulations, and revealed some interesting results on their quasi-particle nature. The numerical method was also applied to the measurements of transport coefficients. We also performed theoretical and phenomenological studies on the analysis of QCD phase diagram using fluctuation observables obtained in relativistic heavy ion collision experiments.

Research Products

• [Journal Article] Revealing baryon number fluctuations from proton number fluctuations in relativistic heavy ion collisions (2012)
  • Author(s): Masakiyo Kitazawa, Masayuki Asakawa
  • Journal Title: Physical Review Volume: C85
  • URL: http://prc.aps.org/abstract/PRC/v85/i2/
  • Peer Reviewed
• [Journal Article] Revealing baryon number fluctuations from proton number fluctuations in relativistic heavy ion collisions (2011)
  • Author(s): Masakiyo Kitazawa, Masayuki Asakawa
  • Journal Title: Physical Review C Volume: 85 Issue: 2
  • DOI: 10.1103/physrevc.85.021901
  • Peer Reviewed
• [Journal Article] Charmonium spectral functions at finite momenta in the gluon plasma from lattice QCD (2011)
  • Author(s): Chiho Nonaka, Masayuki Asakawa, Masakiyo Kitazawa, Yasuhiro Kohno
  • Journal Title: Journal of Physics G Volume: 38 Issue: 12 Pages: 124109-124109
  • DOI: 10.1088/0954-3899/38/12/124109
  • Peer Reviewed
• [Journal Article] Third moments of conserved charges in phase diagram of QCD (2011)
  • Author(s): Masakiyo Kitazawa
  • Journal Title: AIP Conf.Proc Volume: 1388 Pages: 79-85
  • DOI: 10.1063/1.3647354
• [Journal Article] Spectral properties of quarks above Tc--thermal mass, dispersion relation, and self-energy-- (2010)
  • Author(s): Masakiyo Kitazawa
  • Journal Title: Proceedings of Science, LATTICE2010
• [Journal Article] Lattice study of transport coefficients in second order dissipative hydrodynamics (2010)
  • Author(s): Yasuhiro Kohno, Masakiyo Kitazawa
  • Journal Title: Proceedings of Science, LATTICE2010
• [Journal Article] Charmonium spectral functions in quark-gluon plasma from lattice QCD with large spatial volume (2010)
  • Author(s): Chiho Nonaka, Masakiyo Kitazawa
  • Journal Title: Proceedings of Science, LATTICE2010
• [Journal Article] Third Moments of Conserved Charges as Probes of QCD Phase Structure (2009)
  • Author(s): Masayuki Asakawa, Shinji Ejiri, Masakiyo Kitazawa
  • Journal Title: Physical Review Letters Volume: 103
  • URL: http://prl.aps.org/abstract/PRL/v103/i26/e262301
  • Peer Reviewed
• [Journal Article] Quark propagator at finite temperature and finite momentum in quenched lattice QCD (2009)
  • Author(s): Frithjof Karsch, Masakiyo Kitazawa
  • Journal Title: Physical Review Volume: D80
  • URL: http://prd.aps.org/abstract/PRD/v80/i5/
  • Peer Reviewed
• [Journal Article] Third moments of conserved charges as probes of QCD phase structure (2009)
  • Author(s): Masayuki Asakawa, Shinji Ejiri, Masakiyo Kitazawa
  • Journal Title: Physical Review Letters 103
  • Peer Reviewed
• [Journal Article] Quark propagator at finite temperature and finite momentum in quenched lattice QCD (2009)
  • Author(s): Frithjof Karsch, Masakiyo Kitazawa
  • Journal Title: Physical Review D 80
  • Peer Reviewed
• [Presentation] Revealing Baryon Number Fluctuations in Heavy Ion Collisions (2011)
  • Author(s): Masakiyo Kitazawa
  • Organizer: BNL Workshop on Fluctuations and correlations
  • Place of Presentation: Brookhaven National Laboratory, USA
  • Year and Date: 2011-10-04
• [Presentation] Third Moments of Conserved Charges as Probes of QCD Phase Structure (2010)
  • Author(s): Masakiyo Kitazawa
  • Organizer: Extreme QCD 2010 (xQCD2010)
  • Place of Presentation: Bad Honnef, Germany(招待講演)
  • Year and Date: 2010-06-22
• [Presentation] Third moments of conserved charges in phase diagram of QCD (2010)
  • Author(s): Masakiyo Kitazawa
  • Organizer: 12th International Conference, Baryons' 10. The structure of baryons
  • Place of Presentation: Osaka University, Osaka, Japan
• [Presentation] Spectral properties of quarks above Tc-thermal mass, dispersion relation, and self-energy- (2010)
  • Author(s): Masakiyo Kitazawa
  • Organizer: 28th International Symposium on Lattice Field Theory(Lattice 2010)
  • Place of Presentation: Villasimius, Sardinia, Italy
• [Presentation] 励起モードの性質から探る有限温度QCD (2009)
  • Author(s): 北沢正清
  • Organizer: 基研研究会「熱場の量子論とその応用」
  • Place of Presentation: 京都大学基礎物理学研究所
  • Year and Date: 2009-09-04