Reinvestigation of Collective Bands in ^107Tc

作     者：顾龙 朱胜江 J. H. Hamilton A. V. Ramayya J. K. Hwang 刘少华 王建国 罗亦孝 J. O. Rasmussen 李一阳 丁怀博 李科 徐强 杨韵颐 

作者机构：Department of Physics Tsinghua University Beijing 100084 Department of Physics Vanderbilt University Nashville Tennessee 37235 USA Lawrence Berkeley National Laboratory Berkeley California 94720 USA 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2009年第26卷第9期

页      面：101-104页

核心收录：

学科分类：12[管理学] 0301[法学-法学] 1204[管理学-公共管理] 03[法学] 030107[法学-经济法学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 0704[理学-天文学] 120405[管理学-土地资源管理] 

基　　金：Supported by National Natural Science Foundation of China under Grants No 10775078  the National Basic Research Program under Grand No 2007CB815005  the Special Program of Higher Education Science Foundation under Grant No 20070003149. The work at Vanderbilt University and Lawrence Berkeley National Laboratory was supported by U.S. Department of Energy under Grant Nos DE-FG05-88ER40407 and DE-AC03-76SF00098 

主　　题：No English Keyword 

摘      要：The high spin states of a neutron-rich ^107 Tc nucleus are reinvestigated by observing prompt γ-rays from the spontaneous fission of ^252 Cf. The previous level scheme is updated. A collective band based on the π5/2- [303] orbital is confirmed and extended. Inconsistencies in the configuration assignments for a type of positive parity bands of odd-A 105,107,109 Tc in the previous reports are clarified according to the g factor calculations. A new band based on the 1499.5 keV level in ^107Tc is proposed as a two-phonon γ-vibrational band.