Shape phase transition in the odd Sm nuclei: effective order parameter and odd–even effect  

作　　者：张宇 关鑫 王印 左岩 包丽娜 潘峰 

机构地区：[1]Department of Physics, Liaoning Normal University [2]Department of Physics, Chifeng University

出　　处：《Chinese Physics C》2015年第10期48-54,共7页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11375005,11005056,11175078,11405080)

摘　　要：Some binding energy related quantities serving as effective order parameters have been used to analyze the shape phase transition in the odd Sm nuclei. It is found that the signals of phase transition in the odd Sm nuclei are greatly enhanced in contrast to the even Sm nuclei. A further analysis shows that the transitional behaviors related to pairing in the Sm nuclei can be well described by the mean field plus pairing interaction model, with a monotonic decrease in the pairing strength G.Some binding energy related quantities serving as effective order parameters have been used to analyze the shape phase transition in the odd Sm nuclei. It is found that the signals of phase transition in the odd Sm nuclei are greatly enhanced in contrast to the even Sm nuclei. A further analysis shows that the transitional behaviors related to pairing in the Sm nuclei can be well described by the mean field plus pairing interaction model, with a monotonic decrease in the pairing strength G.

关 键 词：shape phase transition effective order parameter odd even effects 

分 类 号：O571[理学—粒子物理与原子核物理]