Eur. Phys. J. A (2005) 24: 5-11
https://doi.org/10.1140/epja/i2004-10121-x

Deformed shell model for T = 0, 1 and 2 bands in ⁵²Fe and ⁷²Kr

¹ Physics Department, Berhampur University, 760 007, Berhampur, India
² Physical Research Laboratory, 380 009, Ahmedabad, India

^* e-mail: rankasahu@rediffmail.com

Received: 17 May 2004
Accepted: 23 December 2004
Published online: 11 February 2005

Abstract

Deformed configuration mixing shell model based on Hartree-Fock states with extension to include isospin projection (DSMT) for two- and four-particle configurations (generated by particle-hole excitations) is applied to study the structure of the low-lying T = 0, 1 and 2 bands (or levels) in the even-even N = Z nuclei ⁵²Fe and ⁷²Kr. The pf-shell KB3 interaction for ⁵²Fe and a modified Kuo’s interaction for ⁷²Kr are employed in the calculations. In this first application of DSMT with four-particle T projection, low-spin (J ⩽ 10) members of the T = 0, 1 and 2 bands in ⁵²Fe are compared with experiment including the known E2 transition strengths. The agreement between DSMT and experiment is reasonably good. Similarly, the low-spin members of the observed (prolate) yrast band in ⁷²Kr are also well described by DSMT.