变形核中的低能 M1 态：自旋剪刀还是自旋翻转？
Low-energy M1 states in deformed nuclei: spin-scissors or spin-flip?
AI总结：
本文用完全自洽 QRPA 与多种 Skyrme 力计算 ^164Dy 和 ^58Ni 的低能 M1 态，表明 ^164Dy 的 2.4–4 MeV 1^+ 态主要源于轨道强度碎裂，而非 WFM 预言的集体自旋剪刀共振。
摘要：
在采用各种 Skyrme 力的完全自洽 Quasiparticle Random-Phase Approximation（QRPA，准粒子无规相近似）框架下，研究了变形的 ^164Dy 和球形的 ^58Ni 中的低能 M1 态。主要关注轨道和自旋 M1 激发。所得结果与 Wigner Function Moments（WFM，Wigner 函数矩）方法所提出的低能自旋剪刀 M1 共振的预言进行了比较。分析了该共振与低能自旋翻转激发之间可能的联系。结合近期的 WFM 研究，我们考察了 ^164Dy 中低能自旋翻转态随形变（从平衡值到球形极限）的演化。简要讨论了张量力的效应。结果表明，在 ^164Dy 中于 2.4–4 MeV 观测到的两组 1^+ 态，与其说是由集体自旋剪刀共振的出现所解释，不如说是由轨道 M1 强度的碎裂所解释。总体而言，我们的计算并不证实该共振的存在。
英文摘要：
The low-energy $M1$ states in deformed $^{164}$Dy and spherical $^{58}$Ni are explored in the framework of fully self-consistent Quasiparticle Random-Phase Approximation (QRPA) with various Skyrme forces. The main attention is paid to orbital and spin $M1$ excitations. The obtained results are compared with the prediction of the low-energy {\it spin-scissors} $M1$ resonance suggested within Wigner Function Moments (WFM) approach. A possible relation of this resonance to low-energy spin-flip excitations is analyzed. In connection with recent WFM studies, we consider evolution of the low-energy spin-flip states in $^{164}$Dy with deformation (from the equilibrium value to the spherical limit). The effect of tensor forces is briefly discussed. It is shown that two groups of $1^+$ states observed at 2.4-4 MeV in $^{164}$Dy are rather explained by fragmentation of the orbital $M1$ strength than by the occurrence of the collective spin-scissors resonance. In general, our calculations do not confirm the existence of this resonance.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
