Phase transition in odd-N Pd-isotopes

作     者：周厚兵 董国香 孙小军 徐甫荣 

作者机构：Guangxi Normal University School of Science Huzhou University School of Physics and SK Laboratory of Nuclear Physics & Technology Peking University Grand Accelerateur National d'Ions Lourds(GANIL) CEA/DSM-CNRS/IN2P3 BP 55027 F-14076 Caen Cedex France 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2015年第39卷第11期

页      面：45-49页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Supported by Natural Science Foundation of Guangxi(2014jj BA10016 2014jj DA10012) National Natural Science Foundation of China(11465005) 

主　　题：structure evolution the E-GOS curve cranked shell model 

摘      要：Phase transition in odd-N isotopes ^99,101,103 Pd are investigated via the E-GOS（E-Gamma Over Spin）curves, which strongly suggest a structure evolution from vibration to rotation along the yrast lines with increasing spin. Theoretical calculations have been performed for the ground state bands of ^99,101,103 Pd in the framework of the cranked shell model（CSM） and the alignment properties observed experimentally are analyzed employing this model. The results show that the phase transition in the ground state bands of ^99,101,103 Pd can be interpreted as the valence nucleons start to occupy the g9/2 proton orbitals with increasing spin which would polarize the core to a small, but rigid quadrupole deformation.