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

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

PHYSICAL REVIEW C, cilt.87, 2013 (SCI İndekslerine Giren Dergi)


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.