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Excited states above the proton threshold in 26Si

  • T. KomatsubaraEmail author
  • S. Kubono
  • T. Hayakawa
  • T. Shizuma
  • A. Ozawa
  • Y. Ito
  • Y. Ishibashi
  • T. Moriguchi
  • H. Yamaguchi
  • D. Kahl
  • S. Hayakawa
  • Dam Nguyen Binh
  • A. A. Chen
  • J. Chen
  • K. Setoodehnia
  • T. Kajino
Regular Article - Experimental Physics

Abstract

The level scheme above the proton threshold in 26Si is crucial for evaluating the 25Al(p, γ)26Si stellar reaction, which is important for understanding the astrophysical origin of the long-lived cosmic radioactivity 26Al(T 1/2 = 7.17 × 105 y) in the Galaxy. The excited states in 26Si have been studied using an in-beam γ-ray spectroscopy technique with the 24Mg(3He, )26Si reaction. γ-rays with energies up to 4.6 MeV emitted from excited states in 26Si have been measured using large volume HPGe detectors. The spin-parity of one of the most important states reported recently at 5890.0keV has been assigned as 0+ by γ-γ angular correlation measurements in this work.

Keywords

Angular Distribution Angular Correlation Spin Assignment 26Si Reaction Stellar Temperature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • T. Komatsubara
    • 1
    Email author
  • S. Kubono
    • 2
  • T. Hayakawa
    • 3
  • T. Shizuma
    • 3
  • A. Ozawa
    • 4
  • Y. Ito
    • 2
  • Y. Ishibashi
    • 4
  • T. Moriguchi
    • 5
  • H. Yamaguchi
    • 6
  • D. Kahl
    • 6
  • S. Hayakawa
    • 7
  • Dam Nguyen Binh
    • 8
  • A. A. Chen
    • 9
  • J. Chen
    • 9
  • K. Setoodehnia
    • 10
  • T. Kajino
    • 11
    • 12
  1. 1.Rare Isotope Science ProjectInstitute for Basic Science (IBS)Yuseong-gu DaejeonRepublic of Korea
  2. 2.RIKENSaitamaJapan
  3. 3.Japan Atomic Energy AgencyTokai, IbarakiJapan
  4. 4.Institute of PhysicsUniversity of TsukubaTsukuba, IbarakiJapan
  5. 5.National Cerebral and Cardiovascular Center Research InstituteSuita, OsakaJapan
  6. 6.Center for Nuclear Study (CNS)University of Tokyo, Wako BranchWako, SaitamaJapan
  7. 7.Laboratori Nazionali del Sud-INFNCataniaItaly
  8. 8.Institute of PhysicsVietnamese Academy for Science and TechnologyHanoiVietnam
  9. 9.McMaster UniversityHamiltonCanada
  10. 10.Department of PhysicsUniversity of Notre DameNotre DameUSA
  11. 11.National Astronomical ObservatoryTokyoJapan
  12. 12.Department of Astronomy, Graduate School of ScienceUniversity of TokyoTokyoJapan

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