Direct total cross section measurement of the O-16(alpha,gamma)Ne-20 reaction at E-c.m.=2.26 MeV

作者：Hager U^*; Brown J R; Buchmann L; Carmona Gallardo M; Erikson L; Fallis J; Greife U; Hutcheon D; Ottewell D; Ruiz C; Sjue S; Vockenhuber C

来源：Physical Review C, 2011, 84(2): 022801.

DOI：10.1103/PhysRevC.84.022801

In stellar helium burning, O-16 represents the endpoint of the helium-burning sequence due to the low rate of O-16(alpha,gamma)Ne-20. We present a new direct measurement of the total capture reaction rate of O-16(alpha,gamma)Ne-20 at E-c.m. = 2.26MeV employing the DRAGON recoil separator. For the first time, the total S factor and its contributing direct capture transitions could be determined in one experiment.

• 出版日期2011-8-23