Description of the critical point symmetry in ¹²⁴ Te by IBM-2

Abstract

Based on the neutron and proton degrees of freedom, the low-lying energy levels, the E2, M 1 and E0 transition strengths of nucleus 124 Te have been calculated by the neutron-proton interacting boson model. The calculated results are quite consistent with the experimental data. By comparing the key observables of states at the critical point of U πν (5)-O πν (6) transition with experimental data and calculated results, we show that the 124 Te is a possible nucleus at the critical point of the second order phase transition from vibration to unstable rotation and such a critical point contains somewhat triaxial rotation. The 0 + 2 state of 124 Te can be interpreted as the lowest state of the first excited family of intrinsic levels in the critical point symmetry.

Study on Vibrational-Gamma Soft Properties in 124Te Nucleus

“…The B (E2) data of Pd [102][103][104][105][106][107][108][109][110][111][112] and Ru 96-102 nuclei were examined [12][13][14]. Several vibrational-gamma soft properties IBM calculations have been reported that dealt with the IBM and IVBM models [15][16][17][18][19]. The aim of the present work is to interpret the collective behavior of yrast state of 124 Te nucleus by D-G, IBM-1, BM, and IVBM models.…”