CRANKED HARTREE-FOCK-BOGOLIUBOV CALCULATIONS IN THE XE-BA REGION

Properties of the ground state and first 2(+) state of a large number of even-even nuclei in the Xe-Ba region have been calculated using a s imple version of cranked Hartree-Fock-Bogoliubov model. The parameter set used has been obtained by fitting the ground state properties of s ome of the nuclei in this region. The sensitivity of the results to th e choice of parameters has also been tested in a few cases. The shape rigidity of the nuclei in this mass region has been studied by generat ing energy contours in the beta(2)-gamma plane. Influence of the hexad ecapole deformation on nuclei having flat energy surfaces in the gamma direction has been examined. Higher angular momentum states also (up to 6(+) or 10(+)) have been calculated in some of the nuclei to study the evolution of shape and nature of alignment with increasing spin.