High spin states in neutron-rich ^(106)Tc nucleus  

作　　者：顾龙 朱胜江 J. H. Hamilton A. V. Ramayya J. K. Hwang J. O. Rasmussen I. Y. Lee 徐强 车兴来 王建国 丁怀博 杨韵颐 

机构地区：[1]Department of Physics, Tsinghua University [2]Department of Physics, Vanderbilt University [3]Lawrence Berkeley National Laboratory

出　　处：《Chinese Physics C》2009年第S1期182-184,共3页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10575057, 10775078);Major State Basic Research Development Program (2007CB815005);Special Program of Higher Education Science Foundation (20070003149);U. S. Department of Energy (DE-FG05-88ER40407, DE-AC03-76SF00098)

摘　　要：The high spin states of the neutron-rich odd-odd 106Tc nucleus have been reinvestigated by observing prompt γ-rays from the spontaneous fission of 252Cf. A previously known collective band is confirmed and expanded, and a new collective band is newly identified. Several levels in previous report in 106Tc are reexamined and they belong to the members of a band in 107Tc. The total Routhian surface (TRS) calculations show that the 106Tc has triaxial shape. The spins and parities as well as the configurations for these bands have been tentatively assigned according to the analysis of the angular momentum alignments.The high spin states of the neutron-rich odd-odd 106Tc nucleus have been reinvestigated by observing prompt γ-rays from the spontaneous fission of 252Cf. A previously known collective band is confirmed and expanded, and a new collective band is newly identified. Several levels in previous report in 106Tc are reexamined and they belong to the members of a band in 107Tc. The total Routhian surface (TRS) calculations show that the 106Tc has triaxial shape. The spins and parities as well as the configurations for these bands have been tentatively assigned according to the analysis of the angular momentum alignments.

关 键 词：spontaneous fission collective band γ-transition and level energy 

分 类 号：O571[理学—粒子物理与原子核物理]