THE NUCLEAR STRUCTURE AND BACKBENDING PHENOMENON FOR ^114-130Xe ISOTOPES

In view of interacting boson fermion formalism, a microscopic sdIBM-2 +2q.p. model is used to describe the ground-state band, \beta-band, \gamma-band and two-quasi-particle band for ^114-130Xe isotopes. The theoretical investigations indicate that the backbending is caused by crossing of the two-quasi-proton band and the ground-state band. This result seems to provide a possible way for understanding the backbending phenomenon of ^114-130Xe isotopes.