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Study of cluster resonances probed by monopole and dipole transitions, and its application to Carbon burning process

Research Project

Project/Area Number 16K05339
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 InstitutionHokkaido University

Principal Investigator

Kimura Masaaki  北海道大学, 理学研究院, 准教授 (50402813)

Research Collaborator Chiba Yohei  
Taniguchi Yasutaka  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsクラスター / 元素合成 / 不安定核 / クラスター共鳴 / アイソスカラー単極遷移 / アイソスカラー双極遷移 / 単極遷移 / 炭素燃焼過程
Outline of Final Research Achievements

There are two major achievements.We have developed and improved antisymmetrized molecular dynamics to describe cluster resonances. We also developed a new theoretical method to evaluate the cluster decay widths. These developments enabled the quantitative study of cluster resonances based on full microscopic nuclear model.Using above mentioned theoretical models, we have shown the properties of C+C and C+O resonances and compared with the existing experimental data. We also showed the linear-chain states in Carbon isotopes and compared with the experiments to establish the linear-chain formation in Carbon isotopes.

Academic Significance and Societal Importance of the Research Achievements

本研究が研究対象とするC+C共鳴やC+O共鳴は、赤色巨星や超新星爆発での元素合成に深く関与しており、その性質解明は、我々の身の回りにある元素の起源を探ることにつながる。従来は、こうした共鳴の性質を調べることは、極めて困難であったが、本研究はその定量的記述を始めて可能にしたものとして学術的意義がある。また、同じ理論手法を用いることで、50年以上も未解決であった直鎖クラスター状態の問題に対して、肯定的解答を示したことも重要な成果である。

Report

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

    (31 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (16 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 15 results,  Open Access: 3 results,  Acknowledgement Compliant: 5 results) Presentation (12 results) (of which Int'l Joint Research: 12 results,  Invited: 11 results) Funded Workshop (1 results)

  • [Int'l Joint Research] TRIUMF(カナダ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Michigan State University(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Structure of Mg31: Shape coexistence revealed by β-γ spectroscopy with spin-polarized Na312019

    • Author(s)
      Nishibata H.、Kanaya S.、Shimoda T.、Odahara A.、Morimoto S.、Yagi A.、Kanaoka H.、Pearson M. R.、Levy C. D. P.、Kimura M.、Tsunoda N.、Otsuka T.
    • Journal Title

      Physical Review C

      Volume: 99 Issue: 2 Pages: 024322-024322

    • DOI

      10.1103/physrevc.99.024322

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Coulomb shift in the mirror pair of 14C and 14O as a signature of the linear-chain structure2019

    • Author(s)
      T. Baba and M. Kimura
    • Journal Title

      Physical Review C

      Volume: 99 Issue: 2 Pages: 1-6

    • DOI

      10.1103/physrevc.99.021303

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 2α+t cluster structure in B112018

    • Author(s)
      Zhou Bo、Kimura Masaaki
    • Journal Title

      Physical Review C

      Volume: 98 Issue: 5

    • DOI

      10.1103/physrevc.98.054323

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characteristic \alpha and 6He decays of the linear-chain states in 16C2018

    • Author(s)
      T. Baba and M. Kimura
    • Journal Title

      Physical Review C

      Volume: 97 Issue: 5 Pages: 1-12

    • DOI

      10.1103/physrevc.97.054315

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Clustering Probed by Nuclear Responses2018

    • Author(s)
      Kimura Masaaki
    • Journal Title

      JPS Conference Proceedings

      Volume: 23

    • DOI

      10.7566/jpscp.23.012019

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nuclear molecules in neutron-rich nuclei2018

    • Author(s)
      Kimura M.、Baba T.
    • Journal Title

      Publisher Logo Conference Proceedings

      Volume: 2038 Pages: 020007-020007

    • DOI

      10.1063/1.5078826

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Structure and decay of the pygmy dipole resonance in 26Ne2017

    • Author(s)
      M. Kimura
    • Journal Title

      Physical Review C

      Volume: 95 Issue: 3

    • DOI

      10.1103/physrevc.95.034331

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Inversion doublets of reflection-asymmetric clustering in 28Si and their isoscalar monopole and dipole transitions2017

    • Author(s)
      Y. Chiba, Y. Taniguchi, and M. Kimura
    • Journal Title

      Phys. Rev. C

      Volume: 95 Issue: 4 Pages: 044328-044328

    • DOI

      10.1103/physrevc.95.044328

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Laplace expansion method for the calculation of the reduced-width amplitudes2017

    • Author(s)
      Chiba Yohei、Kimura Masaaki
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2017 Issue: 5

    • DOI

      10.1093/ptep/ptx063

    • NAID

      120006337773

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Three-body decay of linear-chain states in C142017

    • Author(s)
      Baba T.、Kimura M.
    • Journal Title

      Physical Review C

      Volume: 95 Issue: 6 Pages: 064318-064318

    • DOI

      10.1103/physrevc.95.064318

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Shape coexistence in the N=19 neutron-rich nucleus 31Mg explored by β-γ spectroscopy of spin-polarized 31Na2017

    • Author(s)
      H.Nishibata, T.Shimoda, A.Odahara, S.Morimoto, S.Kanaya, A.Yagi, H.Kanaoka, M.R.Pearson, C.D.P.Levy, M.Kimura
    • Journal Title

      Physics Letters

      Volume: B767 Pages: 81-85

    • DOI

      10.1016/j.physletb.2017.01.049

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] In-beam γ-ray spectroscopy of Mg35 via knockout reactions at intermediate energies2017

    • Author(s)
      Momiyama S.、Doornenbal P.、Scheit H.、Takeuchi S.、Niikura M.、Aoi N.、Li K.、Matsushita M.、Steppenbeck D.、Wang H.、Baba H.、Ideguchi E.、Kimura M.、Kobayashi N.、Kondo Y.、Lee J.、Michimasa S.、Motobayashi T.、Shimizu N.、Takechi M.、Togano Y.、Utsuno Y.、Yoneda K.、Sakurai H.
    • Journal Title

      Physical Review C

      Volume: 96 Issue: 3 Pages: 034328-034328

    • DOI

      10.1103/physrevc.96.034328

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Antisymmetrized molecular dynamics studies for exotic clustering phenomena in neutron-rich nuclei2016

    • Author(s)
      M.Kimura, T.Suhara, Y.Kanada-Enyo
    • Journal Title

      European Physical Journal

      Volume: A52 Issue: 12 Pages: 373-410

    • DOI

      10.1140/epja/i2016-16373-9

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Proton distribution radii of 12-19C illuminate features of neutron halos2016

    • Author(s)
      R. Kanungo, W. Horiuchi, G. Hagen, G.R. Jansen, P. Navratil and 33 others
    • Journal Title

      Physical review Letters

      Volume: 117 Issue: 10 Pages: 1025011-6

    • DOI

      10.1103/physrevlett.117.102501

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Isoscalar dipole transition as a probe for asymmetric clustering2016

    • Author(s)
      Y. Chiba, M. Kimura and Y. Taniguchi
    • Journal Title

      Phys. Rev. C

      Volume: 93 Issue: 3 Pages: 0343191-12

    • DOI

      10.1103/physrevc.93.034319

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Structure and decay pattern of the linear-chain state in 14C2016

    • Author(s)
      T.Baba and M.Kimura
    • Journal Title

      Physical Review C

      Volume: 94 Issue: 4 Pages: 044303-044303

    • DOI

      10.1103/physrevc.94.044303

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] “Nuclear Molecules in neutron-rich nuclei”2018

    • Author(s)
      M.Kimura
    • Organizer
      Fourth International Workshop on “State of the Art in Nuclear Cluster Physics” (SOTANCP4)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] “Structure and decay of pattern of Pygmy dipole resonance”2018

    • Author(s)
      M.Kimura
    • Organizer
      Nuclear Structure and Related Topics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] “Probes for clustering in neutron-rich nuclei”2018

    • Author(s)
      M.Kimura
    • Organizer
      ECT* workshop: Probing exotic structure of short-lived nuclei by electron scattering
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] “Structure and Responses studied by time evolution method -Cluster resonances and PDR-”2018

    • Author(s)
      M.Kimura
    • Organizer
      6th International Conference on Collective Motion in Nuclei under Extreme Conditions
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] “Shape of Carbon-12”2018

    • Author(s)
      M.Kimura
    • Organizer
      Workshop on Nuclear Cluster Physics (WNCP2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nuclear Clustering Probed by the Isoscalar Responses2017

    • Author(s)
      M.kimura
    • Organizer
      International Symposium on Physics of Unstable Nuclei 2017 (ISPUN2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Nuclear Clustering Probed by Nuclear Responses2017

    • Author(s)
      M.kimura
    • Organizer
      Ito International Research Center (IIRC) Symposium “Perspectives of the Physics of Nuclear Structure
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent activities of Hokkaido University group2017

    • Author(s)
      M.kimura
    • Organizer
      Workshop on Nuclear Cluster Physics (WNCP2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Clustering and Nuclear responses2016

    • Author(s)
      M.Kimura
    • Organizer
      First Tsukuba-CCS-RIKEN joint workshop on microscopic theories of nuclear structure and dynamics
    • Place of Presentation
      筑波大学(つくば市、茨城県)
    • Year and Date
      2016-12-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Nuclear responses and Clustering phenomena2016

    • Author(s)
      M.Kimura
    • Organizer
      Workshop on Nuclear Cluster Physics
    • Place of Presentation
      関東学院大学(横浜市、神奈川県)
    • Year and Date
      2016-11-14
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Probing asymmetric clusters by isoscalar monopole/dipole transitions2016

    • Author(s)
      M.Kimura
    • Organizer
      The 11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics
    • Place of Presentation
      ナポリ(イタリア)
    • Year and Date
      2016-05-23
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Nuclear clustering probed by monopole and dipole responses2016

    • Author(s)
      M.Kimura
    • Organizer
      Clustering effects of nucleons in nuclei and quarks in multi-quark states
    • Place of Presentation
      北京(中国)
    • Year and Date
      2016-04-01
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Funded Workshop] Workshop for Nuclear Cluster Physics 20172017

    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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