Study of medium-spin states of neutron-rich 87, 89, 91Rb isotopes

Abstract

Excited states of the rubidium isotopes 87,89,91 37 Rb have been studied at the INFN Legnaro National Laboratory. Measurements of the γ-ray decay of fragments produced in binary grazing reactions resulting from the interaction of a beam of 530 MeV 96 Zr ions with a 124 Sn target have been complemented by studies of the γ-ray decay of fission fragments produced in the interaction of a beam of 230 MeV 36 S ions with a thick 176 Yb target. The structure of the yrast states of 87,89,91 37 Rb has been discussed within the context of spherical shell-model and cranked Nilsson-Strutinsky calculations.