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Accurate studies of the meson properties in the nuclear medium and symmetry of the strong interaction

Research Project

Project/Area Number 16K05355
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionNara Women's University

Principal Investigator

Hirenzaki Satoru  奈良女子大学, 自然科学系, 教授 (60283925)

Project Period (FY) 2016-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords中間子原子 / 中間子原子核 / 強い相互作用 / パイ中間子 / イータ中間子 / K 中間子 / π中間子 / η中間子 / η(958)中間子 / 原子核(理論) / ハドロン物理学 / 中間子
Outline of Final Research Achievements

The purpose of the present project is to investigate the meson properties in the nucleus as accurately as possible and to deduce the new information on the strong interaction symmetry at finite density from them.
In this project, we made collaborations for researches on deeply bound pionic atoms at RIKEN, eta and eta(958) mesic nucleus at COSY and GSI in Germany, and kaonic nucleus at JPARC, and we obtained new information on properties of each meson. Based on the new information, we are trying to deepen our understandings of the strong interaction symmetry.

Academic Significance and Societal Importance of the Research Achievements

強い相互作用の研究は、湯川博士のπ中間子理論、南部博士の自発的対称性の破れの概念の導入によって発展してきた。本研究は、強い相互作用のカイラル対称性が真空中では自発的に破れているが原子核中では部分的に回復する事を実証するという点で学術的に意義がある。さらに、有限なクォーク質量による明からさまなカイラル対称性の破れと、軸性量子異常と呼ばれる対称性の破れの効果も、原子核中の複数の中間子の性質を精密に研究することによって同時に明らかにしようとするものである。本研究では、複数の中間子の原子核中での新たな性質を知ることができた。この知見から強い相互作用の対称性に関する理解を進展させることができる。

Report

(6 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (27 results)

All 2021 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (5 results) Journal Article (11 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 11 results,  Open Access: 3 results,  Acknowledgement Compliant: 1 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 7 results) Remarks (2 results)

  • [Int'l Joint Research] ヤゲロニアン大学(ポーランド)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] ヤゲロニアン大学(ポーランド)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] ヤゲロニアン大学(ポーランド)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] 重イオン研究所(GSI)(ドイツ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] ヤゲロニアン大学(ポーランド)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Structure of double pionic atoms2021

    • Author(s)
      Tani Akari, Ikeno Natsumi, Jido Daisuke, Nagahiro Hideko, Fujioka Hiroyuki, Itahashi Kenta, Hirenzaki Satoru
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2021 Issue: 3

    • DOI

      10.1093/ptep/ptab023

    • NAID

      130008152190

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Search for the η mesic He3 in the pd→dpπ0 reaction with the WASA-at-COSY facility2020

    • Author(s)
      P.Adlarson 他(計83名、S. Hirenzaki 27番目)
    • Journal Title

      Physical Review C

      Volume: 102 Issue: 4

    • DOI

      10.1103/physrevc.102.044322

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An event excess observed in the deeply bound region of the 12C (K?, p) missing-mass spectrum2020

    • Author(s)
      Y. Ichikawa, H. Ekawa, T. Gogami, K. Imai, S. Kanatsuki. T. Nagae, T. Nanamura, M. Naruki et al.
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2020 Issue: 12 Pages: 1-34

    • DOI

      10.1093/ptep/ptaa139

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Non-mesonic decay of the eta-mesic 3He via pd -> (3He-eta)bound -> 3He2gamma(6gamma) reaction2020

    • Author(s)
      M. Skurzok, S. Hirenzaki, S. Kinutani, H. Konishi, P. Moskal, H. Nagahiro, O. Rundel
    • Journal Title

      Nuclear Physics A

      Volume: 993 Pages: 121647-121647

    • DOI

      10.1016/j.nuclphysa.2019.121647

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Search for η mesic 3He with the WASA-at-COSY facility in the pd→3He2γ and pd→3He6γ reactions2020

    • Author(s)
      P. Adlarson 他(計84名、S. Hirenzaki 25番目)
    • Journal Title

      Physics Letters B

      Volume: 802 Pages: 135205-135205

    • DOI

      10.1016/j.physletb.2020.135205

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Structure of eta' mesonic nuclei in a relativistic mean field theory2019

    • Author(s)
      D. Jido, H. Masutani, S. Hirenzaki
    • Journal Title

      Prog. Theor. Exp. Phys.

      Volume: 2019 Issue: 5

    • DOI

      10.1093/ptep/ptz031

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spectroscopy of Pionic Atoms in 122 Sn ( d , 3 He ) Reaction and Angular Dependence of the Formation Cross Sections2018

    • Author(s)
      T. Nishi, K. Itahashi et al.
    • Journal Title

      Physical Review Letters

      Volume: 120 Issue: 15 Pages: 152505-152505

    • DOI

      10.1103/physrevlett.120.152505

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Constraining the optical potential in the search for η-mesic 4He2018

    • Author(s)
      M. Skurzok, P. Moskal, N. G. Kelkar, S. Hirenzaki, H. Nagahiro, N. Ikeno
    • Journal Title

      Physics Letters

      Volume: B782 Pages: 6-12

    • DOI

      10.1016/j.physletb.2018.04.047

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Missing-mass spectroscopy of the 12C(p;d) reaction near the _eta’ emission threshold2018

    • Author(s)
      Y. K. Tanaka, 他
    • Journal Title

      Phys. Rev. C

      Volume: 97 Issue: 1 Pages: 015202-015202

    • DOI

      10.1103/physrevc.97.015202

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] eta- nucleus interaction from the d+d reaction around the eta production threshold2017

    • Author(s)
      N. Ikeno, H. Nagahiro, D. Jido, and S.Hirenzaki
    • Journal Title

      Eur. Phys. J. A

      Volume: 53 Issue: 10 Pages: 194-207

    • DOI

      10.1140/epja/i2017-12381-7

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Formation of η’(958) meson bound states by the 6Li(γ,d) reaction2016

    • Author(s)
      M. Miyatani, N. Ikeno, H. Nagahiro, and S. Hirenzaki
    • Journal Title

      European Physical Journal A

      Volume: 52 Issue: 7 Pages: 193-202

    • DOI

      10.1140/epja/i2016-16193-y

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Recent topics on Mesic atoms and Mesic nuclei2019

    • Author(s)
      S. Hirenzaki
    • Organizer
      3rd Jagellonian Symposium on Fundamental and Applied subatomic physics, Jagiellonian univ., Poland
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Formation of Mesonic Atoms and Mesonic Nuclei2019

    • Author(s)
      S. Hirenzaki
    • Organizer
      Workshop on Chiral and Heavy Quark symmetries in quark-hadron physics, Osaka univ., Japan
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Structure and Formation of Meson-Nucleus bound systems2019

    • Author(s)
      S. Hirenzaki
    • Organizer
      Workshop series on Nuclear Physics-2, Hadrons in nuclear matter, Yonsei Univ., Korea
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Meson Properties at Finite Density from Meson-Nucleus Systems2018

    • Author(s)
      Satoru Hirenzaki
    • Organizer
      International Workshop on “Hadron structure and interaction in dense matter”, KEK Tokai campus
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] η-nucleus interaction from the d + d reaction around the η production threshold2017

    • Author(s)
      比連崎悟
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] Meson properties from mesic atoms and mesic nuclei2017

    • Author(s)
      Satoru Hirenzaki
    • Organizer
      KEK theory center workshop on Hadron and Nu-clear Physics in 2017 (KEK-HN-2017)
    • Place of Presentation
      KEK, Tsukuba, Japan
    • Year and Date
      2017-01-07
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] eta-nucleus interaction from the d+d reaction around the eta production threshold2017

    • Author(s)
      Satoru Hirenzaki
    • Organizer
      2nd Jagiellonian Symposium On Fundamental and Applied Subatomic Physics
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Meson Properties at Finite Density from Meson-Nucleus Systems2017

    • Author(s)
      比連崎悟
    • Organizer
      J-PARCエネルギー領域重イオン衝突のダイナミクス
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] d + d 反応による eta 中間子原子核生成 ー eta-原子核相互作用の導出に関して2016

    • Author(s)
      比連崎 悟
    • Organizer
      東北大ELPH拠点研究会「マルチフレーバーで探るエキゾチックハドロンとハドロン多体系の物理」
    • Place of Presentation
      東北大学電子光理学研究センター
    • Year and Date
      2016-12-01
    • Related Report
      2016 Research-status Report
  • [Remarks] 真空の謎に迫る精密実験始動 -パイ中間子で探る超高密度の世界-

    • URL

      http://www.riken.jp/pr/press/2018/20180413_1/

    • Related Report
      2017 Research-status Report
  • [Remarks] 中間子と原子核からできている『新しい原子』の研究

    • URL

      http://www.nara-wu.ac.jp/rigaku/Research/201701.html

    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2022-01-27  

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