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arXiv 2602.11299nucl-th
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原子核中的广义规范空间旋转:一种关键洞察

Generalized gauge-space rotations in atomic nuclei: A critical insight

KTH Royal Institute of Technology(皇家理工学院)

Chong Qi, Roberto J. Liotta, Ramon Wyss

AI总结:

研究通过分析原子核中的配对相关性,揭示了规范空间中集体旋转行为与泡利阻塞效应的关系。

摘要:

我们对从实验结合能中提取的配对旋转和惯性矩概念进行了批判性重新审视。我们的分析聚焦于同类核子之间的配对相关性、中子-质子配对以及α型相关性。通过研究α分离能和沿固定同位投影链的结合能差异,并减去宏观贡献,我们揭示了残余α相关能表现出 remarkably 平滑且几乎普遍的行为。这些结果显示出集体旋转在规范空间中的抛物线趋势。我们证明了标准定义的规范空间惯性矩对于同类核子配对主要由库仑能和对称能的宏观贡献主导。一旦去除这些贡献,剩余的惯性矩变为负值。这表明所观察到的行为反映了由于泡利阻塞效应导致的相关能损失。我们的结果表明,α相关性构成了一种真正的集体模式,与来自两个超流分量相干耦合产生的四重态动力学有关。

英文摘要:

We critically reexamine the concepts of pairing rotations and moments of inertia in gauge space extracted from experimental binding energies. Our analysis focuses on pairing correlations among like nucleons, neutron-proton pairing, and $α$-type correlations. By investigating $α$ separation energies and binding-energy differences along chains of fixed isospin projection and subtracting macroscopic contributions, we reveal a remarkably smooth and nearly universal behavior in the residual $α$ correlation energy. These results exhibit the parabolic trends characteristic of collective rotations in gauge space. We demonstrate that the standard definition of the gauge-space moment of inertia for like-nucleon pairing is dominated by macroscopic contributions from Coulomb and symmetry energies. Once these are removed, the remaining moment of inertia becomes negative. This suggests that the observed behavior reflects the loss of correlation energy due to Pauli-blocking effect. Our results indicate that $α$ correlations constitute a genuine collective mode associated with quartetting dynamics arising from the coherent coupling of two superfluid components.

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。

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