Study of band structures of 78Kr using triaxial projected shell model

Abstract

The study of neutron-deficient Kr isotopes in the mass range A=70 - 80 is quite interesting because these isotopes show a variety of shapes and shape co-existence have been seen in this mass region. In present work, the multi-quasi particle triaxial projected shell model (TPSM) approach is employed for investigation of the yrast and γ-band of ⁷⁸Kr. The calculated band-energies are compared with known experimental data. The γ-band and 2γ-band are predicted up to spin I=26 h. Calculations show change in staggering phases due to configuration mixing at high spins. The calculated kinematical moment of inertia (MOI) for the yrast band is compared with the available experimental data.