论文标题
快速旋转的梨形核
A fast-rotating pear-shaped nucleus
论文作者
论文摘要
光谱研究已经鉴定出元素周期表的肌动剂和灯笼核，它们可以假定梨形。这些核的低频集体旋转是通过确定激发水平的带状结构及其伽马衰减速率来确定的。在本文中，我们报告了100 ru中梨形核的旋转，该核旋转的旋转速度是先前已知的病例的速度近三倍。这种快速旋转的三个新型后果是：以激发态的梨形实现，其惯性的时刻成为运动的常数及其形状的演变。这些推论是通过将100 RU的旋转带的特征与旋转梨形核的三个最著名的例子以及数据的理论解释得出的。对较轻的质量区域中梨形核的观察为对快速旋转对这种形状的影响进行系统研究的可能性。
The spectroscopic studies have identified few Actinide and Lanthanide nuclei of the periodic table, which can assume the pear shape. The low frequency collective rotation of these nuclei has been established by determining the band structure of the excited levels and their gamma decay rates. In this article, we report the rotation of a pear-shaped nucleus in 100 Ru, which rotates nearly three times faster than the previously known cases. The three novel consequences of this fast rotation are: the realization of a pear-shape in an excited state, its moment of inertia becoming a constant of motion and its shape evolution. These inferences have been arrived at by comparing the characteristics of the rotational band of 100 Ru with three of the best-known examples of a rotating pear-shaped nucleus and through the theoretical interpretation of the data. The observation of a pear-shaped nucleus in the lighter mass region opens up the possibility of a systematic study of the effects of fast rotation on this shape.
