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Analysis of the astrophysical S-factor of the Big Bang nucleosynthesis using the ab-initio nuclear reaction theory

Research Project

Project/Area Number 24540262
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

AOYAMA Shigeyoshi  新潟大学, 学術情報基盤機構, 准教授 (60311528)

Co-Investigator(Kenkyū-buntansha) ARAI Kouji  長岡工業高等専門学校, 一般教育科, 准教授 (20374738)
Co-Investigator(Renkei-kenkyūsha) SUZUKI Yasuyuki  新潟大学, 自然科学系, 自然科学系フェロー (70018670)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords少数多体系 / 元素生成 / 核反応 / 核力第一原理計算
Outline of Final Research Achievements

Main subject of this study is analysis of the astrophysical S-factor of the Big Bang nucleosynthesis using the ab-initio nuclear reaction theory. The large-scale numerical computation using the super computer was carried out to analyze nuclear reaction rate needed in the big bang theory and the 4He nucleosynthesis in the star. Particularly, d(d,γ)4He, t d(d,n)3He and d(d,p)t reaction was studied in detail. The new technique is proposed and showed the usefulness on one of methodology, in which correlated Gaussian basis is combined with the triple global vector.

Report

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

    (5 results)

All 2014 2013 2012

All Presentation (5 results) (of which Invited: 2 results)

  • [Presentation] Ab initio study of nuclear four-body reactions2014

    • Author(s)
      青山茂義
    • Organizer
      Advances and perspectives in computational nuclear physics
    • Place of Presentation
      ヒルトンワイコロアビレッジ(アメリカ合衆国・ハワイ島・コハラ)
    • Year and Date
      2014-10-06
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Analyses of excited states in 4He with complex scaling method2013

    • Author(s)
      青山茂義
    • Organizer
      ヨーロッパ少数多体系の物理
    • Place of Presentation
      クラコフ(ポーランド)
    • Related Report
      2013 Research-status Report
  • [Presentation] 第一原理核反応計算によるd(d,γ)4He反応の分析2013

    • Author(s)
      青山茂義、新井好司、鈴木宜之
    • Organizer
      日本物理学会
    • Place of Presentation
      高知大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Li同位体のα+t構造2013

    • Author(s)
      青山茂義
    • Organizer
      日本物理学会、第68回年次大会
    • Place of Presentation
      広島大学
    • Related Report
      2012 Research-status Report
  • [Presentation] An ab-inito nuclear reaction calculation for d+d, t+p and h+n2012

    • Author(s)
      青山茂義
    • Organizer
      The Third International Symposium on Frontiers in Nuclear Physics
    • Place of Presentation
      北航大学
    • Related Report
      2012 Research-status Report
    • Invited

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

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