Description of the shape evolution in the yrast states of ^(186)Pt  

作　　者：贺创业 吴晓光 郑云 李聪博 方忻 

机构地区：[1]China Institute of Atomic Energy

出　　处：《Chinese Physics C》2014年第2期10-14,共5页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11175259,11075214,10927507)

摘　　要：^186Pt was tested in the framework of IBM-1 and the X（3） model. The results show that ^186Pt 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 of186Pt 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 ^186Pt. The result is in agreement with the E-GOS calculation.^186Pt was tested in the framework of IBM-1 and the X（3） model. The results show that ^186Pt 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 of186Pt 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 ^186Pt. The result is in agreement with the E-GOS calculation.

关 键 词：IBM total Routhian surface B（E2） X（3） model 

分 类 号：O571[理学—粒子物理与原子核物理]