Algebraic solutions for U-BF (5)-O-BF (6) quantum phase transition in odd-mass-number nuclei

作者：Jafarizadeh M A^*; Ghapanvari M; Fouladi N

来源：Physical Review C, 2015, 92(5): 054306.

DOI：10.1103/PhysRevC.92.054306

The spherical to gamma-unstable nuclei shape-phase transition in odd-A nuclei is investigated by using the dual algebraic structures and the affine SU(1,1) Lie algebra within the framework of the interacting boson-fermion model. The new algebraic solution for odd-A nuclei is introduced. In this model, single j = 1/2 and 3/2 fermions are coupled with an even-even boson core. Energy spectra, quadrupole electromagnetic transitions, and an expectation value of the d-boson number operator are presented. Experimental evidence for the U-BF (5)-O-BF (6) transition in odd-A Ba and Rh isotopes is presented. The low-states energy spectra and B(E2) values for these nuclei are also calculated and compared with the experimental data.

• 出版日期2015-11-16