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Theoretical study on dynamics of 12C synthesis through radiative capture reactions of three alpha-particles

Research Project

Project/Area Number 24540261
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 InstitutionNiigata University

Principal Investigator

SUZUKI YASUYUKI  新潟大学, 自然科学系, フェロー (70018670)

Co-Investigator(Renkei-kenkyūsha) HORIUCHI Wataru  北海道大学, 理学(系)研究科(研究院), 助教 (00612186)
AOYAMA Shigeyoshi  新潟大学, 学術情報基盤機構情報基盤センター, 准教授 (60311528)
ARAI Kouji  長岡工業高等専門学校, 准教授 (20374738)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsTriple-alpha reactions / Hoyle resonance / Hyperspherical method / Adiabatic potential / 複素吸収ポテンシャル / Triple-alpha reaction / Hyperspherical harmonics / Complex scaling method / Correlated Gaussian
Outline of Final Research Achievements

The process for synthesizing 12C through radiative capture reactions of three alpha-particles proceeds dominantly via two steps, a formation of 8Be resonance and a subsequent capture of an alpha-particle by emitting gamma rays. An experimental determination of the reaction rate is hopeless, so that a theoretically reliable calculation is needed. Using the hyperspherical coordinate we have developed a description of continuum states of three charged particles and have for the first time succeeded in obtaining the energy and width of the Hoyle resonance that plays a key role for the triple-alpha recations. This result warrants the possibility of calculating the reaction rate accurately. A calculation for reacing our goal is in progress.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (26 results)

All 2015 2014 2013 2012

All Journal Article (12 results) (of which Peer Reviewed: 12 results,  Acknowledgement Compliant: 2 results,  Open Access: 1 results) Presentation (14 results) (of which Invited: 5 results)

  • [Journal Article] Triple-α continuum structure and Hoyle resonance of 12C using the hyperspherical slow variable discretization2015

    • Author(s)
      H. Suno, Y. Suzuki, P. Descouvemont
    • Journal Title

      Physical Review C

      Volume: 91 Issue: 1

    • DOI

      10.1103/physrevc.91.014004

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Adiabatic hyperspherical approach to large-scale nuclear dynamics2015

    • Author(s)
      Y. Suzuki
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2015 Issue: 4

    • DOI

      10.1093/ptep/ptv052

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Correlated-basis description of alpha-cluster and delocalized 0+ states in 16O2014

    • Author(s)
      W. Horiuchi, Y. Suzuki
    • Journal Title

      Physical Review C

      Volume: 89 Issue: 1

    • DOI

      10.1103/physrevc.89.011304

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Probing neutron-skin thickness with total reaction cross sections2014

    • Author(s)
      W. Horiuchi, Y. Suzuki, T. Inkaura
    • Journal Title

      Phys. Rev. C

      Volume: 89 Issue: 1

    • DOI

      10.1103/physrevc.89.011601

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Tests of a deformable core plus few-nucleon model2014

    • Author(s)
      W. Horiuchi, Y. Suzuki
    • Journal Title

      Few-Body Systems

      Volume: 55 Issue: 2 Pages: 121-133

    • DOI

      10.1007/s00601-013-0762-6

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Theory and application of explicitly correlated Gaussians2013

    • Author(s)
      J. Mitroy, S. Bubin, K. Varga, W. Horiuchi, Y. Suzuki, L. Adamowicz, W. Chencek, K. Szalewicz, J. Komasa, D. Blume
    • Journal Title

      Review of Modern Physics

      Volume: 85 Issue: 2 Pages: 693-749

    • DOI

      10.1103/revmodphys.85.693

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Excited states and strength functions of 4He in correlated Gaussians}2013

    • Author(s)
      W. Horiuchi, Y. Suzuki
    • Journal Title

      Few-Body Systems

      Volume: 54 Issue: 12 Pages: 2407-2418

    • DOI

      10.1007/s00601-012-0495-y

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spin-dipole strength functions of 4He with realistic nuclear forces2013

    • Author(s)
      W. Horiuchi, Y. Suzuki
    • Journal Title

      Physical Review C

      Volume: 87 Issue: 3

    • DOI

      10.1103/physrevc.87.034001

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Four-nucleon scattering with a correlated Gaussian basis method2012

    • Author(s)
      S.Aoyama, K.Arai, Y.Suzuki, P.Descouvemont, D.Baye
    • Journal Title

      Few-Body Systems

      Volume: 52 Issue: 1-2 Pages: 97-123

    • DOI

      10.1007/s00601-011-0266-1

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ab initio study of the photoabsorption of 4He2012

    • Author(s)
      W.Horiuchi, Y.Suzuki, K.Arai
    • Journal Title

      Phys.Rev.C (accepted on Apr.23,2012)

      Volume: 85 Issue: 5

    • DOI

      10.1103/physrevc.85.054002

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Glauber-model analysis of total reaction cross sections for Ne, Mg, Si, and S isotopes with Skyrme-Hartree-Fock densities2012

    • Author(s)
      W. Horiuchi, et al.
    • Journal Title

      Physical Review C

      Volume: 86 Issue: 2 Pages: 24614-24614

    • DOI

      10.1103/physrevc.86.024614

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Polarized proton+4,6,8He elastic scattering with breakup effects in the eikonal approximation2012

    • Author(s)
      K. Kaki, Y. Suzuki, R.B. Wiringa
    • Journal Title

      Physical Review C

      Volume: 86 Issue: 4

    • DOI

      10.1103/physrevc.86.044601

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 超球SVD法によるトリプルアルファの構造とホイル共鳴状態の研究2015

    • Author(s)
      数納広哉、鈴木宜之、Pierre Descouvemont
    • Organizer
      日本物理学会
    • Place of Presentation
      早稲田大学早稲田キャンパス
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] Adiabatic hypespherical approach to nuclear dynamics2015

    • Author(s)
      鈴木宜之
    • Organizer
      International Molecule-type Workshop `Structure and reaction of exotic nuclei'
    • Place of Presentation
      京都大学基礎物理学研究所
    • Year and Date
      2015-01-06 – 2015-01-23
    • Related Report
      2014 Annual Research Report
  • [Presentation] 全反応断面積で探る不安定核のスキン厚2014

    • Author(s)
      堀内渉、鈴木宜之、稲倉恒法
    • Organizer
      日本物理学会
    • Place of Presentation
      東海大学湘南キャンパス(平塚市)
    • Related Report
      2013 Research-status Report
  • [Presentation] ハイペロンを含む3バリオン系におけるクォ-クパウリ効果2014

    • Author(s)
      仲本朝基、鈴木宜之
    • Organizer
      日本物理学会
    • Place of Presentation
      東海大学湘南キャンパス(平塚市)
    • Related Report
      2013 Research-status Report
  • [Presentation] ヘリウム4のスピン双極子励起とスペクトル2013

    • Author(s)
      堀内渉、鈴木宜之
    • Organizer
      日本物理学会
    • Place of Presentation
      高知大学朝倉キャンパス(高知市)
    • Related Report
      2013 Research-status Report
  • [Presentation] クォ-ク模型による3バリオン系におけるパウリ効果2013

    • Author(s)
      仲本朝基、鈴木宜之
    • Organizer
      日本物理学会
    • Place of Presentation
      高知大学朝倉キャンパス(高知市)
    • Related Report
      2013 Research-status Report
  • [Presentation] 炭素生成3α反応におけるポテンシャル障壁2013

    • Author(s)
      鈴木宜之
    • Organizer
      日本物理学会
    • Place of Presentation
      高知大学朝倉キャンパス(高知市)
    • Related Report
      2013 Research-status Report
  • [Presentation] Reaction cross sections and neutron skin2013

    • Author(s)
      Y. Suzuki, W. Horiuchi, T. Inakura
    • Organizer
      Justipen-Jusuipen Workshop
    • Place of Presentation
      理化学研究所(和光市)
    • Related Report
      2013 Research-status Report
  • [Presentation] 少数核子系の計算からの課題2013

    • Author(s)
      鈴木 宜之
    • Organizer
      基研研究会「微視的有効相互作用の理論と核構造・核反応」
    • Place of Presentation
      京都大学基礎物理学研究所
    • Related Report
      2012 Research-status Report
  • [Presentation] Structure and reactions in core plus few nucleons approximation2013

    • Author(s)
      Y. Suzuki
    • Organizer
      YIPQS Int. Mol. on Coexistence of weak and strong binding in unstable nuclei
    • Place of Presentation
      京都大学基礎物理学研究所
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Clustering in nuclei2012

    • Author(s)
      Y. Suzuki
    • Organizer
      Hprozons of Innovative Theories, Experiments, and Supercomputing in Nuclear Physics
    • Place of Presentation
      Astor Crowne Plaza, New Orleans, U.S.A.
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Summary talk -- from a theoretical point of view2012

    • Author(s)
      Y. Suzuki
    • Organizer
      International Conference on Clcustering Aspects of Nuclear Structure and Dynamics
    • Place of Presentation
      Debrecen, Hungary
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Electroweak response of 4He and its level structre2012

    • Author(s)
      Y. Suzuki
    • Organizer
      INT workshop on Electroweak properties of light nuclei
    • Place of Presentation
      Univ. of Washington, Seattle, U.S.A.
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Resonances and responses of few-body systems2012

    • Author(s)
      Y. Suzuki
    • Organizer
      基研研究会「量子力学における共鳴状態と非エルミート系」
    • Place of Presentation
      京都大学基礎物理学研究所
    • Related Report
      2012 Research-status Report
    • Invited

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Published: 2013-05-31   Modified: 2019-07-29  

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