Collective excitations in the transitional nuclei Re 163 and Re 165
Collective excitations in the transitional nuclei Re 163 and Re 165
复制标题
过渡核 Re 163 和 Re 165 的集体激发
DOI：
10.1103/physrevc.91.034319
复制
发表时间：
2015
影响因子：
3.1
通讯作者：
Davis-Merry T
中科院分区：
文献类型：
--
作者：
Davis-Merry T
在轰击能量为270和380 MeV的聚变-蒸发反应中，贫中子核和中的激发态被布居。利用JUROGAM谱仪在靶位探测γ射线，利用RITU充气反冲分离器在飞行中分离反冲离子，注入GREAT谱仪。利用反冲衰变相关技术确定了和的能级结构。在低自旋时，这些同位素的yraast带由基于单准质子构型的签名伙伴带组成。带显示大的能量分裂与上述过渡核典型的软三轴形状一致。在曲柄壳模型的框架内提出了激发态的构型。
Excited states in the neutron-deficient nucleiandwere populated in theand,fusion-evaporation reactions at bombarding energies of 270 and 380 MeV, respectively. γ rays were detected at the target position using the JUROGAM spectrometer while recoiling ions were separated in-flight by the RITU gas-filled recoil separator and implanted in the GREAT spectrometer. The energy level schemes forandwere identified using recoil-decay correlation techniques. At low spin, the yrast bands of these isotopes consist of signature partner bands based on a singlequasiproton configuration. The bands display large energy splitting consistent with the soft triaxial shape typical of transitional nuclei above. The configurations of the excited states are proposed within the framework of the cranked shell model.