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Veryfication of effects of three-body nuclear force in nuclear structure and reaction processes

Research Project

Project/Area Number 16K05353
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 InstitutionOsaka University

Principal Investigator

Kohno Michio  大阪大学, 核物理研究センター, 協同研究員 (40234710)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords3体核力 / カイラル有効場理論 / 原子核の飽和性 / 核物質計算 / パウリ排他効果 / 微視的光学模型ポテンシャル / パウリ配置換え効果 / 核媒質中のハイペロン / 3体力の有効2体化 / 光学模型ポテンシャル / 中性子星物質 / 3体力 / 3体力の有効2体力化 / 中性子星物質とハイペロン / 有効テンソル力 / G行列 / テンソル力 / ユニタリ演算子模型法 / 有効相互作用
Outline of Final Research Achievements

The accurate description of nucleon-nucleon (NN) interactions, which is basic for microscopic studies of properties of nuclei, has been advanced by chiral effective field theory. The advantage consists of an ability of systematic introduction of many-nucleon forces. Although the saturation is one of the most fundamental properties of nuclei, the microscopic understanding has been lacking, and its description relies largely on the phenomenology. I have carried out nuclear matter calculations with the chiral NN and 3N interactions, and showed that three-nucleon forces (3NFs) play an essential role in reproducing microscopically saturation properties. On the basis of this observation, I have proceeded to verify the effects of 3NFs in nuclear structures and reactions. The possibility that the Lambda hyperons do not appear in high-density neutron star matter has also been demonstrated by nuclear matter calculations with baryon-baryon interactions in chiral effective field theory.

Academic Significance and Societal Importance of the Research Achievements

原子核の核子分布密度がほぼ一定であるという飽和性は基盤的性質であるが、これまで微視的な理解はなされていず、現象論的な記述に頼っていた。この研究課題では、3体力が系統的に導入されるカイラル有効場理論の相互作用記述を用いて無限核物質系の計算を行い、3体力の寄与が飽和性を説明することを示した。3体力の寄与は、2体力の構築の段階で消去される自由度の関わる過程が、核媒質中でパウリ原理により受ける影響の重要性を意味する。この理解に立脚して、核構造の面ではスピン軌道力への3体力の望ましい寄与を明らかにし、核反応過程では微視的に構築した光学模型ポテンシャルが、核子と原子核の弾性散乱をよく記述することを示した。

Report

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

    (23 results)

All 2020 2019 2018 2017 2016

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (17 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Xi hyperons in the nuclear medium described by chiral NLO interactions2019

    • Author(s)
      M. Kohno
    • Journal Title

      Physical Review C

      Volume: 100 Issue: 2

    • DOI

      10.1103/physrevc.100.024313

    • NAID

      130008153333

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ground-state properties of doubly magic nuclei from the unitary-model-operator approach with chiral two- and three-nucleon forces2019

    • Author(s)
      T. Miyagi, T. Abe, M. Kohno, P. Navratil, R. Okamoto, T. Otsuka, N. Shimizu, and S. R. Stroberg
    • Journal Title

      Phys. Rev. C

      Volume: 100 Issue: 3 Pages: 034310-034310

    • DOI

      10.1103/physrevc.100.034310

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pauli rearrangement potential for a scattering state with the nucleon-nucleon interaction in chiral effective field theory2018

    • Author(s)
      M. Kohno
    • Journal Title

      Physical Review C

      Volume: 98 Issue: 5

    • DOI

      10.1103/physrevc.98.054617

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of chiral three-nucleon forces on 4He-nucleus scattering in a wide range of incident energies2018

    • Author(s)
      Toyokawa Masakazu、Yahiro Masanobu、Matsumoto Takuma、Kohno Michio
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2018 Issue: 2 Pages: 1-19

    • DOI

      10.1093/ptep/pty001

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Single-particle potential of the Λ hyperon in nuclear matter with chiral effective field theory NLO interactions including effects of YNN three-baryon interactions2018

    • Author(s)
      Kohno M.
    • Journal Title

      Physical Review C

      Volume: 97 Issue: 3

    • DOI

      10.1103/physrevc.97.035206

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Probing three-nucleon-force effects via (p,2p) reactions2017

    • Author(s)
      Minomo Kosho、Kohno Michio、Yoshida Kazuki、Ogata Kazuyuki
    • Journal Title

      Physical Review C

      Volume: 96 Issue: 2 Pages: 1-5

    • DOI

      10.1103/physrevc.96.024609

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 微視的光学模型ポテンシャルのレンジ補正局所密度近似法について2020

    • Author(s)
      河野通郎
    • Organizer
      日本物理学会2019年度年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 微視的光学模型ポテンシャルへのパウリ配置換え効果と3体力の寄与2019

    • Author(s)
      河野通郎
    • Organizer
      日本物理学会2018年度年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Rearrangement potential in scattering state with interactions of chiral effective field theory2018

    • Author(s)
      M. Kohno
    • Organizer
      5th Joint Meeting of the APS Division of Nuclear Physics and the Physics Society of Japan, 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Lambda, Sigma, and Xi hyperons in nuclear matter with NLO chiral effective field theory interactions2018

    • Author(s)
      M. Kohno
    • Organizer
      国際ワークショップ "Hadron structure and interaction in dense matter"
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Pauli effects on microscopic optical model potential: rearrangement potential and 3NF contribution2018

    • Author(s)
      M. Kohno
    • Organizer
      京都大学基礎物理学研究所研究会 "Recent advances in nuclear structure physics 2018"
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 陽子弾性散乱で見る有効テンソル力の寄与と問題点2017

    • Author(s)
      河野通郎、豊川将一
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] ChEFTのΛNN-ΣNN3体力の効果2017

    • Author(s)
      河野通郎
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 核子ノックアウト反応のスピン観測量で探る3体力効果2017

    • Author(s)
      蓑茂工将、吉田数貴、河野通郎、緒方一介
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 3体力効果を取り込んだUMOA計算2017

    • Author(s)
      宮城宇志、阿部喬、河野通郎、P.Navratil、岡本良治、大塚孝治、清水則孝、S.R.Stroberg
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 3体力の効果を取り込んだUMOA計算に向けて2017

    • Author(s)
      宮城宇志, 阿部喬, 岡本良治, 河野通郎, 大塚孝治
    • 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
    • Related Report
      2016 Research-status Report
  • [Presentation] 有効2体化3体力の効果を含む、中重核領域における殻模型計算2017

    • Author(s)
      吉田聡太, 宮城宇志, 阿部喬, 大塚孝治, 角田直文, 清水則孝, 河野通郎
    • 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
    • Related Report
      2016 Research-status Report
  • [Presentation] ノックアウト反応の精密解析で探るカイラル有効場理論3体力効果2017

    • Author(s)
      蓑茂工将, 河野通郎, 吉田数貴, 緒方一介
    • 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
    • Related Report
      2016 Research-status Report
  • [Presentation] Microscopic descriptions of nuclear scattering and reaction processes on the basis of chiral EFT2016

    • Author(s)
      Michio Kohno
    • Organizer
      国際研究集会 "Towards consistent approaches for nuclear structure and reactions"
    • Place of Presentation
      European Center for Theoretical Studies in Nuclear Physics and Related Area, Trento, Italy
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] カイラル有効理論の核力を用いた弾性散乱の解析と3体力効果2016

    • Author(s)
      豊川将一, 八尋正信, 松本琢磨, 河野通郎
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      宮崎大学木花キャンパス
    • Related Report
      2016 Research-status Report
  • [Presentation] ユニタリ模型演算子法における2重魔法数原子核の1粒子エネルギー2016

    • Author(s)
      宮城宇志, 阿部喬, 岡本良治, 河野通郎, 大塚孝治
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      宮崎大学木花キャンパス
    • Related Report
      2016 Research-status Report
  • [Presentation] カイラル有効場の理論に基づく3体力のテンソル成分の効果2016

    • Author(s)
      吉田聡太, 角田直文, 阿部喬, 大塚孝治, 河野通郎, 鈴木俊夫
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      宮崎大学木花キャンパス
    • Related Report
      2016 Research-status Report
  • [Presentation] NNLO2体化3体力のテンソル成分の訂正と核物質計算2016

    • Author(s)
      河野通郎
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      宮崎大学木花キャンパス
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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