Phase transition in odd-N Pd-isotopes  

作　　者：周厚兵 董国香 孙小军 徐甫荣 

机构地区：[1]Guangxi Normal University [2]School of Science, Huzhou University [3]School of Physics and SK Laboratory of Nuclear Physics & Technology, Peking University [4]Grand Accelerateur National d'Ions Lourds(GANIL), CEA/DSM-CNRS/IN2P3, BP 55027, F-14076 Caen Cedex, France

出　　处：《Chinese Physics C》2015年第11期45-49,共5页中国物理C（英文版）

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

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.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.

关 键 词：structure evolution the E-GOS curve cranked shell model 

分 类 号：TG146.36[一般工业技术—材料科学与工程]