Structural evolution of the intruder band in ^(118)Sn  

作　　者：王守宇 段波涛 朱欣欣 任修磊 杨晓玲 郗娟 吕丰正 孙大鹏 吕英波 刘希举 华辉 李忠宇 张双全 亓斌 尧江明 竺礼华 吴晓光 李广生 刘颖 李雪琴 郑云 王烈林 汪雷 

机构地区：[1]School of Space Science and Physics,Shandong University [2]School of Physics,and SK Lab. of Nucl. Phys. & Tech.,Peking University [3]China Institute of Atomic Energy

出　　处：《Chinese Physics C》2009年第10期838-841,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10875074, 10605001, 10505002, 10775005);Major StateBasic Research Developing Program (2007CB815005)

摘　　要：Excited states of the positive-parity intruder band in 11SSn have been studied via the ^116Cd（^7Li, 1p4n） reaction at ^7Li energy of 48 MeV using techniques of in-beam y-ray spectroscopy. This intruder band has been observed up to ^7187 keV with spin （16^＋）. The structural evolution of this intruder band with increasing angular momentum has been discussed in terms of the aligned angular momentum and the ratio of the E-Gamma Over Spin （E-COS） curve.Excited states of the positive-parity intruder band in 11SSn have been studied via the ^116Cd（^7Li, 1p4n） reaction at ^7Li energy of 48 MeV using techniques of in-beam y-ray spectroscopy. This intruder band has been observed up to ^7187 keV with spin （16^＋）. The structural evolution of this intruder band with increasing angular momentum has been discussed in terms of the aligned angular momentum and the ratio of the E-Gamma Over Spin （E-COS） curve.

关 键 词：intruder band quasiparticle alignment structural evolution 

分 类 号：O641.1[理学—物理化学]