Nuclear structure of 124Xe in dynamic PPQ model

The Xe isotopes in the A=130 region, with low quadrupole deformation β, are good examples of the γ-soft nuclei. Recent data of 124Xe exhibit well developed K-bands of ground, Kπ=21+, 02+, 03+ and 41+. Its spectrum is studied in relation to the underlying dynamic symmetries. The absolute intra- and inter-band B(E2) values and the B(E2) ratios are compared with the theoretical predictions of the dynamic pairing plus quadrupole model in the microscopic approach, and the interacting boson model IBM-1. The potential energy surface illustrates the γ-soft character. The variation of inertia tensor over the (β,γ) space is studied, and the spread of the wave functions of three Iπ=0+ and two 2+ states over the (β,γ) space illustrate their varied character. Comparison is done with the dynamic symmetries of IBM for different bands. The O(6) symmetry breaking and preservation of the O(5) and O(6) symmetry are reviewed.