Configuration mixing calculation in the framework of the interacting boson model (2) in even112−118Sn isotopes

Abstract

In this paper, the normal and the intruder 2p-2h bands in even {sup 112{minus}118}Sn isotopes have been studied through configuration mixing calculation in the framework of IBM-2. The states belonging to the normal and the intruder bands have been calculated separately and then allowed to mix by using a simple band-mixing Hamiltonian. Energy values, E2 transition probabilities, and quadrupole moments of the first 2{sup +} state have been calculated and compared with the experimental values. {copyright} {ital 1997} {ital The American Physical Society}