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Study of Alpha-Cluster Structure for Astrophysical Reactions

Research Project

Project/Area Number 21340053
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionThe University of Tokyo

Principal Investigator

KUBONO Shigeru  東京大学, 大学院・理学系研究科, 教授 (20126048)

Co-Investigator(Kenkyū-buntansha) YAMAGUCHI Hidetoshi  東京大学, 大学院・理学系研究科, 講師 (30376529)
WAKABAYASHI Yasuo  理化学研究所, 仁科センター, 基礎科学特別研究員 (80447359)
HASHIMOTO Hisashi  大阪大学, 核物理研究センター, 特任助教 (90414581)
TERANISHI Takashi  九州大学, 大学院・理学研究院, 准教授 (10323495)
IWASA Naohito  東北大学, 大学院・理学研究科, 准教授 (50322996)
KATO Seigo  山形大学, 理学部, 名誉教授 (70013422)
NISHIMURA Shunji  理化学研究所, 仁科加速器センター, 先任研究員 (90272137)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2010: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2009: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Keywords原子核(実験) / 水素の爆発的元素合成過程 / 新星・超新星の元素合成 / 低エネルギーRIビーム / 陽子過剩核のα共鳴 / νp過程 / p核生成 / アクティブ標的 / 陽子過剰核のα共鳴 / vp過程
Research Abstract

The main context of the research is (1) study of stellar (α,p) reactions on radioactive nuclei (11C, 18Ne, 30S, and 22Mg), (2) development of MSTPC time-projection active target chamber, (3) a beam development of 44Ti. Resonant α elastic scattering was also investigated to clarify the role of a cluster in the (α,p) reactions. The important role of α cluster resonances for the (α,p) reactions has been demonstrated for the first time Successful, extensive measurements of the (α,p) reactions with RI beams were made for the first time. Some parts of the work have been summarized for Ph. D. thesis and also being prepared for publications.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (50 results)

All 2012 2011 2010 2009 Other

All Journal Article (30 results) (of which Peer Reviewed: 30 results) Presentation (15 results) Book (2 results) Remarks (3 results)

  • [Journal Article] New measurement of the ^<11>B(p,α0)^8Be bare-nucleus S(E) factor via the Trojan horse method2012

    • Author(s)
      L. Lamia, S. Kubono, 他
    • Journal Title

      J. Phys. G: Nucl. Part. Phys.

      Volume: 39 Issue: 1 Pages: 15106-15106

    • DOI

      10.1088/0954-3899/39/1/015106

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Strong ^<25>Al + p resonances via elastic proton scattering with a radioactive ^<25>Al beam2012

    • Author(s)
      J. Chen, S. Kubono, 他
    • Journal Title

      Phys. Rev. C

      Volume: 85 Issue: 1 Pages: 15805-15805

    • DOI

      10.1103/physrevc.85.015805

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Isobaric analog resonances of the N=21 nucleus 35Si2012

    • Author(s)
      N.Imai, et al
    • Journal Title

      Phys.Rev.C

      Volume: 85 Issue: 3 Pages: 34313-34313

    • DOI

      10.1103/physrevc.85.034313

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Experimental study of resonant states in ^<27>P via elastic scattering of ^<26>Si+p2012

    • Author(s)
      H. S. Jung, S. Kubono, 他
    • Journal Title

      Phys. Rev. C

      Volume: 85 Issue: 4 Pages: 45802-45802

    • DOI

      10.1103/physrevc.85.045802

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Quasi-elastic scattering of the proton drip line nucleus ^<17>F on ^<12>C at 60 MeV2012

    • Author(s)
      G.L. Zhang, S. Kubono, 他
    • Journal Title

      Eur. Phys. J.

      Volume: A 48 Issue: 5 Pages: 65-65

    • DOI

      10.1140/epja/i2012-12065-x

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] A new low-energy radioactive beam line for nuclear astrophysics studies in China2012

    • Author(s)
      J.J. He, S. Kubono, 他
    • Journal Title

      Nucl. Instr. Meth.

      Volume: A680 Pages: 43-47

    • DOI

      10.1016/j.nima.2012.03.040

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] New measurement of the ^<11>B(p,α_0)^8Be bare-nucleus S(E) factor via the Trojan horse method2012

    • Author(s)
      L.Lamia, S.Kubono, et al.
    • Journal Title

      J.Phys.G : Nucl.Part.Phys.

      Volume: 39 Pages: 15106-15106

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spins and parities of astrophysically important ^<30>S states from ^<28>Si(3He, nγ)^<30>S2011

    • Author(s)
      K. Setoodehnia, S. Kubono, 他
    • Journal Title

      Phys. Rev. C

      Volume: 83 Issue: 1 Pages: 18803-4

    • DOI

      10.1103/physrevc.83.018803

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Uncertainties in the p-Process : Supernova Dynamics versus Nuclear Physics2011

    • Author(s)
      S. Wanajo, H.-T. Janka, and S. Kubono
    • Journal Title

      Astrophys. J.

      Volume: 729 Issue: 1 Pages: 46-55

    • DOI

      10.1088/0004-637x/729/1/46

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] β-Decay Half-Lives of Very Neutron-Rich Kr to Tc Isotopes on the Boundary of the r-Process Path : An Indication of Fast r-Matter Flow2011

    • Author(s)
      S. Nishimura, S. Kubono, 他
    • Journal Title

      Phys. Rev. Lett.

      Volume: 106 Issue: 5 Pages: 52502-5

    • DOI

      10.1103/physrevlett.106.052502

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] α resonance structure in ^<11>B studied via resonant scattering of ^7Li+α2011

    • Author(s)
      H. Yamaguchi, S. Kubono, 他
    • Journal Title

      Phys. Rev. C

      Volume: 83 Issue: 3 Pages: 34306-10

    • DOI

      10.1103/physrevc.83.034306

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simple, High-Sensitive, and Non-Destructive Beam Monitor for RI Beam Facilities2011

    • Author(s)
      S. Watanabe, S. Kubono, 他
    • Journal Title

      Nucl. Instr. Meth.

      Volume: A 633 Issue: 1 Pages: 8-14

    • DOI

      10.1016/j.nima.2010.12.036

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Structural Evolution in the Neutron-Rich Nuclei ^<106>Zr and ^<108>Zr2011

    • Author(s)
      T.Sumikama, et al
    • Journal Title

      Physical Review Letters

      Volume: 106 Issue: 20 Pages: 2025011-2025014

    • DOI

      10.1103/physrevlett.106.202501

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Low-lying level structure of the neutron-rich nucleus ^<109>Nb : A possible oblate-shape isomer2011

    • Author(s)
      H. Watanabe, S. Kubono, 他
    • Journal Title

      Phys. Lett. B

      Volume: 696 Issue: 3 Pages: 186-190

    • DOI

      10.1016/j.physletb.2010.12.028

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Resonance states in 27P using Coulomb dissociation and their effect on the stellar reaction 26Si(p,γ)27P2011

    • Author(s)
      Y. Togano, S. Kubono, 他
    • Journal Title

      Phys. Rev. C

      Volume: 84 Issue: 3 Pages: 35808-35808

    • DOI

      10.1103/physrevc.84.035808

    • URL

      https://pure.teikyo.jp/en/publications/e00c4ab3-f3b1-4db9-8faa-5cdeb5b79d43

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Development of axial asymmetry in the neutron-rich nucleus ^<110>Mo2011

    • Author(s)
      H.Watanabe, et al
    • Journal Title

      Physics Letters B

      Volume: 704 Issue: 4 Pages: 270-275

    • DOI

      10.1016/j.physletb.2011.09.050

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simple, High-Sensitive, and Non-Destructive Beam Monitor for RI Beam Facilities2011

    • Author(s)
      S.Watanabe, S.Kubono, et al.
    • Journal Title

      Nucl.Instr.Meth.A

      Volume: 633 Pages: 8-14

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Low-lying level structure of the neutron-rich nucleus ^<109>Nb : A possible oblate-shape isomer2011

    • Author(s)
      H.Watanabe, S.Kubono, et al.
    • Journal Title

      Phys.Lett.B

      Volume: 696 Pages: 186-190

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of axial asymmetry in the neutron-rich nucleus ^<110>Mo2011

    • Author(s)
      H.Watanabe, S.Kubono, et al.
    • Journal Title

      Phys.Lett.B

      Volume: 704 Pages: 270-275

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spins and parities of astrophysically important 30S states from 28Si(3He, nY)30S2011

    • Author(s)
      K.Setoodehnia, S.Kubono, 他
    • Journal Title

      Phys.Rev.C

      Volume: 83 Pages: 18803-4

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Uncertainties in the αp-Process : Supernova Dynamics versus Nuclear Physics2011

    • Author(s)
      S.Wanajo, S.Kubono, 他
    • Journal Title

      Astrophys.J.

      Volume: 729 Pages: 46-55

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct Measurement of the ^<14>O(α,p)^<14>O Cross Section for Astrophysically Important ^<14>O + α Resonances2010

    • Author(s)
      A. Kim, I. S. Hahn, S. Kubono, 他
    • Journal Title

      J. Korean Phys. Soc.

      Volume: 57 Issue: 1 Pages: 40-43

    • DOI

      10.3938/jkps.57.40

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Direct Measurement of the 14O(α,p)14O Cross Section for Astrophysically Important 14O+αResonances2010

    • Author(s)
      A.Kim, S.Kunono, 他
    • Journal Title

      J.Korean Phys.Soc.

      Volume: 57 Pages: 40-43

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Low-lying non-normal parity states in <sup>8</sup>B measured by proton elastic scattering on <sup>7</sup>Be2009

    • Author(s)
      H. Yamaguchi, S. Kubono, 他
    • Journal Title

      Phys. Lett. B

      Volume: 672 Issue: 3 Pages: 230

    • DOI

      10.1016/j.physletb.2009.01.033

    • URL

      https://pure.teikyo.jp/en/publications/16d8adc4-4dfe-4082-b70f-f85fb077c9e9

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of excited states in ^<22>Mg via resonant elastic scattering of ^<21>Na+p and its astrophysical implications2009

    • Author(s)
      J. J. He, S. Kubono, 他
    • Journal Title

      Phys. Rev. C

      Volume: 80 Issue: 1 Pages: 15801-6

    • DOI

      10.1103/physrevc.80.015801

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Experimental approach to explosive nucloeosynthesis with RI beams2009

    • Author(s)
      S. Kubono,H .Yamaguchi, 他
    • Journal Title

      J. Korean Phys. Soc.

      Volume: 54 Issue: 1 PART 1 Pages: 308

    • DOI

      10.3938/jkps.54.308

    • URL

      https://pure.teikyo.jp/en/publications/d38e2c31-096b-401c-96b9-665bfeed4dc7

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] β decay of the proton-rich nucleus ^<24>Si and its mirror asymmetry2009

    • Author(s)
      Y. Ichikawa, S. Kubono, 他
    • Journal Title

      Phys. Rev. C

      Volume: 80 Issue: 4 Pages: 44302-12

    • DOI

      10.1103/physrevc.80.044302

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Low-Lying Non-Normal Parity States in ^8B measured by Proton Elastic Scattering on ^7Be2009

    • Author(s)
      H.Yamaguchi, S.Kubono, 他
    • Journal Title

      Physics Letters B 672

      Pages: 230-234

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of excited states in ^<22>Mg via resonant elastic scattering of ^<21>Na+p and its astrophysical implications2009

    • Author(s)
      J.J. He, S.Kubono, 他
    • Journal Title

      Physical Review C 80

      Pages: 15801-6

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] β decay of the proton-rich nucleus 24Si and its mirror asymmetry2009

    • Author(s)
      Y.Ichikawa, S.Kubono, 他
    • Journal Title

      Physical Review C 80

      Pages: 44302-12

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Experimental Approach to Explosive Burning with RI beams2011

    • Author(s)
      S.Kubono
    • Organizer
      KoRIA Symposium 2011
    • Place of Presentation
      韓国デジョン市(招待講演)
    • Year and Date
      2011-12-02
    • Related Report
      2011 Annual Research Report
  • [Presentation] Nuclear Physics Problems for Explosive Nucleosynthesis2011

    • Author(s)
      S.Kubono
    • Organizer
      International Symposium on Origin of Matter and Evolution of Galaxies 2011
    • Place of Presentation
      埼玉県和光市(招待講演)
    • Year and Date
      2011-11-16
    • Related Report
      2011 Annual Research Report
  • [Presentation] Alpha-Cluster Nature Dominance for the (α,p) Process in Explosive Hydrogen Burning2011

    • Author(s)
      S.Kubono
    • Organizer
      Frontier Issues in Physics of Exotic Nuclei (YKIS2011)
    • Place of Presentation
      京都市京都大学
    • Year and Date
      2011-10-13
    • Related Report
      2011 Annual Research Report
  • [Presentation] Nuclear Clusters in Astrophysics2011

    • Author(s)
      S.Kubono
    • Organizer
      6^<th> European summer school on experimental nuclear astrophysics
    • Place of Presentation
      イタリア サンタテクラ市(招待講演)
    • Year and Date
      2011-09-23
    • Related Report
      2011 Annual Research Report
  • [Presentation] Nuclear reactions in nuclear astrophysics-"Direct" reaction mechanism-2011

    • Author(s)
      S.Kubono
    • Organizer
      Workshop on Recent Developments in Transfer and Knockout Reactions
    • Place of Presentation
      イタリア トレント市(招待講演)
    • Year and Date
      2011-05-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] Study of Alpha Induced Stellar Reactions at CRIB2010

    • Author(s)
      H.Yamaguchi
    • Organizer
      The 10^<th> International Symposium on Origin of Matter and Evolution of Galaxies
    • Place of Presentation
      大阪大学
    • Year and Date
      2010-03-10
    • Related Report
      2009 Annual Research Report
  • [Presentation] Direct measurement of the C11(α, p)Stellar Reation2010

    • Author(s)
      早川勢也
    • Organizer
      The 10^<th> International Symposium on Origin of Matter and Evolution of Galaxies
    • Place of Presentation
      大阪大学
    • Year and Date
      2010-03-09
    • Related Report
      2009 Annual Research Report
  • [Presentation] Direct and Indirect Measurements of the 18F(p, α)Reaction2010

    • Author(s)
      S.Cherubini
    • Organizer
      The 10^<th> International Symposium on Origin of Matter and Evolution of Galaxies
    • Place of Presentation
      大阪大学
    • Year and Date
      2010-03-09
    • Related Report
      2009 Annual Research Report
  • [Presentation] Nuclear Astrophysical studies using low-energy RI beams at CRIB2009

    • Author(s)
      山口英斉
    • Organizer
      The 6^<th> Japan-Italy Symposium on Heavy I on Physics
    • Place of Presentation
      筑波大学
    • Year and Date
      2009-11-18
    • Related Report
      2009 Annual Research Report
  • [Presentation] New results on Trojan Horse Method applied to the ^<10, 11>B+p reactions2009

    • Author(s)
      C.Spitaleri
    • Organizer
      The 6^<th> Japan-Italy Symposium on Heavy I on Physics
    • Place of Presentation
      筑波大学
    • Year and Date
      2009-11-18
    • Related Report
      2009 Annual Research Report
  • [Presentation] The study of 18F+p reaction at astrophysical energies2009

    • Author(s)
      S.Cherubini
    • Organizer
      The 6^<th> Japan-Italy Symposium on Heavy I on Physics
    • Place of Presentation
      筑波大学
    • Year and Date
      2009-11-18
    • Related Report
      2009 Annual Research Report
  • [Presentation] Direct Measurement of the 21Na(α, p)Reaction2009

    • Author(s)
      Dam N.Binh
    • Organizer
      The Third US-Japan Joint Meeting of Nuclear Physics
    • Place of Presentation
      ハワイ(米国)
    • Year and Date
      2009-10-17
    • Related Report
      2009 Annual Research Report
  • [Presentation] Nuclear Astrophysics Programs with Low-Energy RI Beams at CRIB2009

    • Author(s)
      久保野茂
    • Organizer
      International Symposium on Exotic Nuclei(EXON)
    • Place of Presentation
      ソチ(ロシア)
    • Year and Date
      2009-10-03
    • Related Report
      2009 Annual Research Report
  • [Presentation] Nuclear Cluster Aspects in Astrophysics2009

    • Author(s)
      久保野茂
    • Organizer
      The 5^<th> European Summer School on Nuclear Astrophysics
    • Place of Presentation
      サンタテクラ(イタリア)
    • Year and Date
      2009-09-21
    • Related Report
      2009 Annual Research Report
  • [Presentation] Nuclear Clusters in Astrophysics2009

    • Author(s)
      久保野茂
    • Organizer
      The 10^<th> International Conference on Nucleus-Nucleus Collisions
    • Place of Presentation
      北京(中国)
    • Year and Date
      2009-08-16
    • Related Report
      2009 Annual Research Report
  • [Book] シリーズ現代の天文学第12巻天体物理の基礎第2章「核反応・元素合成基礎論」2009

    • Author(s)
      久保野茂、梶野敏貴
    • Publisher
      日本評論社
    • Related Report
      2011 Final Research Report
  • [Book] 天体物理学の基礎I2009

    • Author(s)
      観山, 他編集(久保野茂、梶野敏貴著)
    • Total Pages
      342
    • Publisher
      日本評論社
    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.cns.s.u-tokyo.ac.jp/proj/astro/index-j.html

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.cns.s.u-tokyo.ac.jp/proj/astro/index-j.html

    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.cns.s.u-tokyo.ac.jp/proj/astro/index-j.html

    • Related Report
      2009 Annual Research Report

URL: 

Published: 2009-04-01   Modified: 2016-04-21  

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