
%0 Journal Article
%A Barker, FC 
%T The 12C(a,?)16O Cross Section at Stellar Energies
%J Australian Journal of Physics
%D 1987/02/01
%V 40
%N 1
%P 25-38
%K 
%R https://doi.org/10.1071/PH870025
%U https://www.publish.csiro.au/paper/PH870025 
%X An earlier calculation of the El contribution to the 12C(a, y) 160 cross section at stellar energies, which used R-matrix formulae with parameters chosen to fit 12C+ a phase shifts and the a spectrum from 16N {3 decay, is updated by including in the fit 12C(a, y) 160 cross section data. The E2 contribution is obtained by an R-matrix fit to 12C + a phase shifts and to data derived from 12C(a, y) 160 angular distribution measurements. Estimates of these contributions by others are discussed critically. It is suggested that the long-accepted value of the stellar cross section should be increased by a factor of about 2 rather than the factor 3-5 that has been proposed recently. 
