Energy dependence of the helium-3 induced charge exchange reaction on several light nuclei with n - z = 1

Abstract

9Be , llB, 25Mg and 27Al targets have been bombarded with the He beam from the University of Illinois cyclotron. The angular distributions for the (3He ,t) charge exchange reaction have been obtained for 9Be at 20.2, 22.1, 24.9 and 27.8 MeV; for 11B at 20.2, 22.1, and 24.9 MeV; and for' 25 Mg and 27 Al at 20.2 and 24.9 MeV. The data were analyzed using distorted-wave Born approximation with both a phenomenological and microscopic form factor. A generalized collective excitation model is introduced. The data suggests the need of a second order reaction mechanism.