Isobaric analogue resonances in (p, n) reactions on 78Se, 80Se, 82Se and 87Rb

Abstract Excitation functions for the reactions 78 Se(p, n) 78 Br, 80 Se(p, n) 80 Br, 82 Se(p, n) 82 Br and 87 Rb(p, n) 87 Sr have been investigated, and isobaric analogue resonances have been identified. The total widths of several of the resonances have been determined. The Coulomb-displacement energies for the isobaric pairs 79 Se- 79 Br, 81 Se- 81 Br, 83 Se- 83 Br and 88 Rb- 88 Sr were found to be 10.50±0.05, 10.487±0.015, 10.56±0.05 and 11.16±0.09 MeV, respectively.