In stellar helium burning, (16)O represents the endpoint of the helium-burning sequence due to the low rate of (16)O(alpha,gamma)(20)Ne. We present a new direct measurement of the total capture reaction rate of (16)O(alpha,gamma)(20)Ne 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.
Revised: October 31, 2012 |
Published: August 23, 2011
Citation
Hager U., J.R. Brown, L.R. Buchmann, M. Carmona-Gallardo, L.E. Erikson, J.S. Fallis, and U. Greife, et al. 2011.Direct Total Cross Section Measurement of the 16O(a,?)20Ne Reaction at Ec.m. = 2.26 MeV.Physical Review C 84, no. 2:Article No. 022801.PNNL-SA-83011.doi:10.1103/PhysRevC.84.022801