论文标题
超流量引起的核性手性旋转
Nuclear chiral rotation induced by superfluidity
论文作者
论文摘要
对配对相关性或超流体对核性手性旋转的影响的微观理解是一个长期且具有挑战性的问题。基于三维曲柄协变量函数理论，实现了具有精确粒子数的壳模式的方法，以考虑配对相关性并应用于ND135中的手性双重表带。可用的数据已很好地复制。发现超流体可以降低临界频率并使手性旋转更加容易。该机制是，沿短/长轴的粒子/孔对齐通过配对相关性降低，从而增强了沿中间轴的集体旋转的偏好，并诱导了手性旋转的早期出现。
The microscopic understanding on the influence of the pairing correlations or the superfluidity on the nuclear chiral rotation has been a longstanding and challenging problem. Based on the three-dimensional cranking covariant density functional theory, a shell-model-like approach with exact particle number conservation is implemented to take into account the pairing correlations and applied for the chiral doublet bands in Nd135. The data available are well reproduced. It is found that the superfluidity can reduce the critical frequency and make the chiral rotation easier. The mechanism is that the particle/hole alignments along the short/long axis are reduced by the pairing correlations, resulting in the enhanced preference of the collective rotation along the intermediate axis, and inducing the early appearance of the chiral rotation.
