Description of the shape evolution in the yrast states of Pt-186

作者：He Chuang Ye^*; Wu Xiao Guang; Zheng Yun; Li Cong Bo; Fang Xin

来源：Chinese Physics C, 2014, 38(2): 024101.

DOI：10.1088/1674-1137/38/2/024101

• IBM
• total Routhian surface
• B(E2)
• X(3) model

Pt-186 was tested in the framework of IBM-1 and the X(3) model. The results show that Pt-186 is located close to the shape phase transition point, but the B(E2) values little agree with the X(3) model. The shape evolution in the yrast states of Pt-186 is also discussed in detail. TRS calculation exhibits a flat bottomed potential at low spin states, but a relatively deep minimum at high spin states. It suggests that a shape evolution from vibrational mode to rotational mode happens in Pt-186. The result is in agreement with the E-GOS calculation.

• 出版日期2014-2
• 单位中国原子能科学研究院