质子angular momentum排列对$^{101}$ Pd双剪切机制的影响
Effects of proton angular momentum alignment on the two-shears-like mechanism in $^{101}$Pd
摘要：
本文用曲柄壳模型研究了最近观测到的$^{101}$ Pd中可能存在的反磁转动带，该模型采用粒子数守恒的方法处理了对关联，并精确地考虑了阻塞效应.实验的转动惯量和约化的$B(E2)$跃迁几率以及它们随转动频率$ω$的变化被很好地再现。通过分析费米面附近各推转Nilsson轨道占据几率与$ω$的关系以及各主壳层价轨道对总角动量排列的贡献，明确了$νh_{11/2}$在$^{101}$ Pd中的上弯机制.讨论了质子角动量排列及其对类双剪切机制的影响。
英文摘要：
The recently observed possible antimagnetic rotation band in $^{101}$Pd is investigated by the cranked shell model with pairing correlations treated by a particle-number conserving method, in which the blocking effects are taken into account exactly. The experimental moments of inertia and reduced $B(E2)$ transition probabilities and their variations with the rotational frequency $ω$ are well reproduced. By analyzing the $ω$-dependence of the occupation probability of each cranked Nilsson orbital near the Fermi surface and the contributions of valence orbitals in each major shell to the total angular momentum alignment, the upbending mechanism of $νh_{11/2}$ in $^{101}$Pd is understood clearly. The proton angular momentum alignment and its influence on the two-shears-like mechanism are also discussed.
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