摘要
通过熔合蒸发反应１６０Ｇｄ（１９Ｆ，６ｎ２ｐ）对１７１Ｌｕ的１／２－［５４１］转动带进行了研究，观测到了此带的第一带交叉频率．与相邻偶偶核相比该频率值推迟了约４０ｋｅＶ．推转壳模型对单准质子的顺排角动量和能量的计算结果表明πｈ９／２［５４１］１／２－轨道的形变驱动作用对这种推迟的贡献是不应被忽略的．
The 1/2-[541] band in 171Lu is extended up to neutron crossing by using heavy-ion induced reaction 160Gd(19F, 6n2p) at a bombarding energy of 92MeV.It shows delayed neutron crossing frequency in comparison with the even-even neighbors.Calculations based on cranked shell model suggest that the role played by the deformation-drving effect of the πh9/2[541]1/2- orbit shouldn't be ignored in the delay of the bandcrossng in 171Lu.
出处
《高能物理与核物理》
SCIE
CAS
CSCD
北大核心
1996年第10期865-869,共5页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
关键词
形变驱动
反常带交叉频率
高自旋态
deformation-driving character,anomalous crossing frequency,high spin states.
