Studies of (α,d) Reactions on N=28 Nuclei. I. 51V(α,d)53Cr

Abstract

Angular distributions of deuterons to 13 levels in 53 Cr were measured up to 3.72 MeV of excitation energy using 22 MeV alpha particles. The angular distributions are compared with the zero-range DWBA calculations employing the explicit the explicit wave functions for the 53 Cr states given by a shell model calculation. The 53 Cr states above E x =1.28 MeV which are only weakly excited by one-nucleon transfer reactions are found to be rather strongly excited. They are assigned as the states of which main configuration corresponds to the coupling of one neutron outside the N =28 core with the J π ≠0 + protons. An attempt is made to determine the absolute normalization constant for the (α,d) cross sections and the value D 0 2 ∼10 6 MeV 2 fm 3 is obtained.