短程物理导致原子核集体性意外增强
Unexpected Rise in Nuclear Collectivity from Short-Range Physics
AI总结：
本文通过从头计算方法研究 $^6$Li 和 $^{12}$C 低激发态，发现短程 $S$ 波接触耦合通过改变变形核形状的表面振荡显著影响四极集体性，揭示了核集体性与短程核子-核子相互作用之间的新联系。
摘要：
我们发现原子核内核子集体运动与传统上认为由长程关联驱动的图像之间存在令人惊讶的联系，而这种集体运动实际上与短程核子-核子相互作用有关。具体而言，我们采用最先进的从头计算方法研究了 $^6$Li 和 $^{12}$C 低激发态的四极集体性，发现两个相互竞争的 $S$ 波接触耦合会显著影响一个主要变形核形状的表面振荡，但并不改变该形状在原子核中的整体贡献。这些结果为理解涌现核集体性的本质及其与短距离下核子-核子相互作用的联系提供了新的见解。
英文摘要：
We discover a surprising relation between the collective motion of nucleons within atomic nuclei, traditionally understood to be driven by long-range correlations, and short-range nucleon-nucleon interactions. Specifically, we find that quadrupole collectivity in low-lying states of $^6$Li and $^{12}$C, calculated with state-of-the-art ab initio techniques, is significantly influenced by two opposing $S$-wave contact couplings that subtly alter the surface oscillations of one largely deformed nuclear shape, without changing that shape's overall contribution within the nucleus. The results offer new insights into the nature of emergent nuclear collectivity and its link to the underlying nucleon-nucleon interaction at short distances.
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。
