The low-energy 12 C(α, γ ) 16 O reaction is analyzed with the potential model. The potentials are chosen from the deep potential describing the α-particle nuclear rainbow phenomena at high energies. Below E c.m. = 1 MeV, the cross section is found to be dominated by the E2 transition to the ground state of 16 O. No enhancement of the E1 component at low energies is predicted. The extrapolated astrophysical S-factors at E c.m. = 0.3 MeV are S E2 = 150 keV b and S E1 = 3 keV b.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.