Measurement of the reaction O-17(alpha,n)Ne-20 and its impact on the s process in massive stars


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Best A., Beard M., Goerres J., Couder M., deBoer R., Falahat S., ...More

PHYSICAL REVIEW C, vol.87, no.4, 2013 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 87 Issue: 4
  • Publication Date: 2013
  • Doi Number: 10.1103/physrevc.87.045805
  • Title of Journal : PHYSICAL REVIEW C

Abstract

Background: The ratio between the rates of the reactions O-17(alpha,n)Ne-20 and O-17(alpha,gamma)Ne-21 determines whether O-16 is an efficient neutron poison for the s process in massive stars, or if most of the neutrons captured by O-16(n,gamma) are recycled into the stellar environment. This ratio is of particular relevance to constrain the s process yields of fast rotating massive stars at low metallicity.