发表机构
Chiba University; Osaka University（千叶大学; 大阪大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究预测$^{86}$Ni为双幻核且具有中子晕，并通过折叠势计算质子弹性散射截面，为晕核反应机制提供独特研究机会。
AI 中文摘要
使用半现实相互作用的自治平均场计算预测，在Ni附近$N=58$成为幻数，其中$n2s_{1/2}$轨道是最高占据态。由于最后的中子占据浅束缚的$s$轨道，$^{86}$Ni可能非常独特，同时成为双幻核并具有中子晕。在多体波函数中歧义最小的情况下，它可能为研究晕核中的反应机制等提供独特机会。作为示例，我们展示了通过折叠势（无局部近似）预测的质子弹性散射微分截面，并将其与使用经验势获得的结果进行比较。
英文摘要
Self-consistent mean-field calculations with semi-realistic interactions have predicted that $N=58$ becomes a magic number near Ni, where the $n2s_{1/2}$ orbit is the highest occupied state. As the last neutrons occupy the shallowly bound $s$-orbit, $^{86}$Ni can be highly distinctive, being a doubly-magic nucleus and possessing a neutron halo simultaneously. With minimal ambiguity in the many-body wave function, it may provide a unique opportunity to investigate, \textit{e.g.}, reaction mechanisms in halo nuclei. As an example, we present differential cross sections for proton elastic scattering predicted via a folding potential without local approximations, and compare them with those obtained using an empirical potential.
Comments4 pages, 3 figures; to be published in JPS Conf. Proc. (ARIS2026)
