Band structure in ^77,79Sr

Abstract

We have investigated the structure of the collective bands in ^77,79Sr within our deformed configuration mixing (DCM) shell model based on Hartree -Fock states. In our model, the single particle orbits 1p_3/2 Oƒ_5/2 1p_1/2 and Og_9/2 are taken as the configuration space with ⁵⁶Ni as the core. A modified Kuo interaction for this basis space is used in our calculation. The different levels are classified into collective bands on the basis of the B(E2) values among them. The calculated collective bands and the B(E2) values are compared with available experimental data. Our calculation is able to reproduce the identical bands observed in ⁷⁷Sr, ⁷⁸Sr and ⁷⁸Rb.