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THE NUCLEAR STRUCTURE AND BACKBENDING PHENOMENON FOR 114-130Xe ISOTOPES
Authors:Shi Zhu-yi  Liu Yong and Sang Jian-ping
Institution:Department of Physics, Guizhou Institute for Nationalities, Guiyang 550025, China; Department of Physics, Wuhan University, Wuhan 430072, China; Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China
Abstract:In view of interacting boson fermion formalism, a microscopic sdIBM-2 +2q.p. model is used to describe the ground-state band, β-band, γ-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.
Keywords:sdIBM-2+2q  p model  high-spin states  microscopic investigation
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