Semi microscopic description of84Kr

Abstract

The experimental information on the S*Kr nuclei is compared with the model calculation in which two neutron holes are coupled to the vibrational field. Based on the lower-order terms of a perturbative expansion of the E2 and M1 transition matrix elements, a simple rule is obtained for the sign and the magnitude of the 6(E2/M1) ratios for the transitions between the second and first 2 + states in some vibrational nuclei.[Nuclear structure S4Kr, calculated levels J, ~ and 6(E2/M1), Cluster-phonon model.Pairing interaction].