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Integrated study of photon production in hot and dense quark matter

Research Project

Project/Area Number 19K14722
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
Research InstitutionJapan Women's University (2020-2021)
High Energy Accelerator Research Organization (2019)

Principal Investigator

MONNAI Akihiko  日本女子大学, 理学部, 講師 (20709357)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords原子核理論 / クォークグルーオンプラズマ / 光子 / 原子核衝突 / 非平衡光子 / 有限密度 / 状態方程式 / 相対論的流体力学 / 原子核(理論) / 高エネルギー原子核衝突 / ハドロン
Outline of Research at the Start

本研究では高エネルギー原子核衝突における光子生成の理論的枠組みを構築する。衝突ではクォークグルーオンプラズマと呼ばれる量子色力学(QCD)物質が生成される。衝突直後の即時光子と媒質由来の熱光子の評価を改善することに加えて、媒質生成前と媒質冷却後における光子の寄与を取り入れることでより完全な光子生成モデルを構築する。得られたモデルを基に、理論計算と実験データの比較からQCD物質の生成機構および有限密度のQCD相構造についての知見を得る。

Outline of Final Research Achievements

High-energy nuclear collisions produce a high-temperature matter of several trillion degrees called quark-gluon plasma. The investigator has developed a theoretical framework to understand the momentum distribution of the photons created in such collisions. Numerical simulations are performed based on relativistic hydrodynamic model by considering pre-equilibrium photons emitted before the formation of the quark matter in addition to thermal and prompt photons. It has been found that the effects of pre-equilibrium photons can be important. The investigator has also constructed the equation of state at high temperatures and densities to elucidate the properties of the quark matter.

Academic Significance and Societal Importance of the Research Achievements

本研究では相対論的流体モデルに基づく原子核衝突における光子生成の理論計算において、これまで考慮されてこなかった非平衡光子の影響を取り入れることで、理論模型の定量性を高めることができた。また、原子核衝突で生成される高温高密度クォーク物質に関する幅広い知見を得ることができた。これらの成果は素粒子物理と非平衡統計物理の融合分野としての原子核物理の発展に対して大きく貢献するものである。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (31 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (13 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 12 results,  Open Access: 3 results) Presentation (11 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results) Remarks (4 results)

  • [Int'l Joint Research] ブルックヘブン国立研究所/ウェイン州立大学(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ブルックヘブン国立研究所/ウェイン州立大学(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ブルックヘブン国立研究所/ウェイン州立大学(米国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Hydrodynamic analyses of nuclear collisions in Landau and Eckart frames2022

    • Author(s)
      Akihiko Monnai
    • Journal Title

      Proceedings of Science

      Volume: 380 Pages: 258-258

    • DOI

      10.22323/1.380.0258

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct photons in hydrodynamic modeling of relativistic nuclear collisions2022

    • Author(s)
      Akihiko Monnai
    • Journal Title

      International Journal of Modern Physics A

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] QCD equation of state with Tsallis statistics for heavy-ion collisions2022

    • Author(s)
      K. Kyan, A. Monnai
    • Journal Title

      arXiv

      Volume: 2205.01742 Pages: 1-9

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] QCD equation of state at finite densities for nuclear collisions2021

    • Author(s)
      Akihiko Monnai, Bjoern Schenke and Chun Shen
    • Journal Title

      Nuclear Physics A

      Volume: 1005 Pages: 121868-121868

    • DOI

      10.1016/j.nuclphysa.2020.121868

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] QCD equation of state at finite chemical potentials for relativistic nuclear collisions2021

    • Author(s)
      Akihiko Monnai, Bjoern Schenke and Chun Shen
    • Journal Title

      International Journal of Modern Physics A

      Volume: 36(07) Issue: 07 Pages: 2130007-2130007

    • DOI

      10.1142/s0217751x21300076

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Prompt, pre-equilibrium, and thermal photons in relativistic nuclear collisions2020

    • Author(s)
      Akihiko Monnai
    • Journal Title

      Journal of Physics G: Nuclear and Particle Physics

      Volume: 47 Issue: 7 Pages: 075105-075105

    • DOI

      10.1088/1361-6471/ab8d8c

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Signatures of the vortical quark-gluon plasma in hadron yields2020

    • Author(s)
      Taya Hidetoshi, Park Aaron, Cho Sungtae, Gubler Philipp, Hattori Koichi, Hong Juhee, Huang Xu-Guang, Lee Su Houng, Monnai Akihiko, Ohnishi Akira, Oka Makoto, Yang Di-Lun
    • Journal Title

      Physical Review C

      Volume: 102 Issue: 2 Pages: 021901-021901

    • DOI

      10.1103/physrevc.102.021901

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 強い相互作用の状態方程式――原子核衝突の視点から2020

    • Author(s)
      門内晶彦
    • Journal Title

      日本物理学会誌

      Volume: 75(9) Pages: 565-569

    • NAID

      130007940674

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Medium-induced optical effects for prompt photons2020

    • Author(s)
      Akihiko Monnai
    • Journal Title

      Nuclear Physics A

      Volume: 995 Pages: 121679-121679

    • DOI

      10.1016/j.nuclphysa.2019.121679

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 原子核衝突で作られる有限密度QCD物質の状態方程式2020

    • Author(s)
      門内晶彦
    • Journal Title

      原子核研究

      Volume: 64(2) Pages: 27-37

    • NAID

      130008155767

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Possible non-prompt photons in pp collisions and their effects in AA analyses2019

    • Author(s)
      Akihiko Monnai
    • Journal Title

      Proceedings of Science

      Volume: 345 Pages: 173-173

    • DOI

      10.22323/1.345.0173

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Landau and Eckart frames for relativistic fluids in nuclear collisions2019

    • Author(s)
      Akihiko Monnai
    • Journal Title

      Physical Review C

      Volume: 100 Issue: 1

    • DOI

      10.1103/physrevc.100.014901

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Equation of state at finite densities for QCD matter in nuclear collisions2019

    • Author(s)
      Akihiko Monnai, Bjoern Schenke, Chun Shen
    • Journal Title

      Physical Review C

      Volume: 100 Issue: 2

    • DOI

      10.1103/physrevc.100.024907

    • NAID

      130008155767

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Hydrodynamic analyses of nuclear collisions in Landau and Eckart frames2021

    • Author(s)
      Akihiko Monnai
    • Organizer
      Particles and Nuclei International Conference 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] クォークグルーオンプラズマ流体におけるエネルギーおよびバリオン密度への散逸補正2021

    • Author(s)
      門内晶彦
    • Organizer
      日本物理学会 2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Photon emission in initial and hydrodynamic stages of nuclear collisions2021

    • Author(s)
      Akihiko Monnai
    • Organizer
      Initial Stages 2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 原子核衝突で作られる有限密度QCD物質の状態方程式2020

    • Author(s)
      門内晶彦
    • Organizer
      日本物理学会 2020年秋季大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] クォーク物質における相対論的流体モデル2020

    • Author(s)
      門内晶彦
    • Organizer
      日本流体力学会 年会2020
    • Related Report
      2020 Research-status Report
  • [Presentation] 原子核衝突で作られる有限密度QCD物質の状態方程式2020

    • Author(s)
      門内晶彦
    • Organizer
      日本物理学会 第75回年次大会(2020年)
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] ジオメトリ・グラウバー模型2019

    • Author(s)
      門内晶彦
    • Organizer
      チュートリアル研究会「高エネルギー重イオン衝突の物理:基礎・最先端・課題・展望」
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] ランダウおよびエッカルト系における重イオン衝突の流体解析2019

    • Author(s)
      門内晶彦
    • Organizer
      基研研究会「熱場の量子論とその応用」2019
    • Related Report
      2019 Research-status Report
  • [Presentation] 高エネルギー原子核衝突における粘性流体力学2019

    • Author(s)
      門内晶彦
    • Organizer
      日本流体力学会 年会2019
    • Related Report
      2019 Research-status Report
  • [Presentation] クォーク物質における非平衡過程の光子生成2019

    • Author(s)
      門内晶彦
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] QCD properties at finite densities in nuclear collisions2019

    • Author(s)
      Akihiko Monnai
    • Organizer
      Quark Matter 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] Website of Akihiko Monnai

    • URL

      https://sites.google.com/site/akihikomonnai/home

    • Related Report
      2021 Annual Research Report 2020 Research-status Report 2019 Research-status Report
  • [Remarks] QCD equation of state

    • URL

      https://sites.google.com/view/qcdneos/

    • Related Report
      2021 Annual Research Report 2020 Research-status Report 2019 Research-status Report
  • [Remarks] 日本女子大学ウェブページ

    • URL

      https://unv.jwu.ac.jp/unv/academics/teacher/member162002.html

    • Related Report
      2020 Research-status Report
  • [Remarks] 素粒子原子核研究所 - 素核研

    • URL

      https://www2.kek.jp/ipns/ja/post/2020/03/20200331/

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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