Proton decay branching ratio for the 6.15-MeV Ne-18 level

作者：Bardayan D W^*; Blackmon J C; Kozub R L; Matos M; Smith M S

来源：Physical Review C, 2012, 85(6): 065805.

DOI：10.1103/PhysRevC.85.065805

The O-14(alpha, p)F-17 reaction is an important trigger to the alpha p process in x-ray bursts. Only limited information is available from direct measurements of the reaction cross section, and the time-inverse F-17(p, alpha)O-14 reaction has been frequently used to constrain the astrophysical reaction rate. These time-inverse measurements must be complemented by inelastic F-17(p, p%26apos;)F-17* studies to constrain branches populating the first excited state of F-17. Discrepancies in the literature are examined in relationship to directly measured F-17(p, p%26apos;)F-17* data, and it is shown that a resolution is possible. Claims of alternative spin assignments for the 6.15-MeV level are also discussed in relationship to the measured inelastic data.

• 出版日期2012-6-13