发表机构
Korea Aerospace University; Kangwon National University at Dogye; Kyoto University; RIKEN Nishina Center for Accelerator-based Science, RIKEN; Daegu University（韩国航空大学; 江原国立大学道岩校区; 京都大学; 理化学研究所仁科加速器科学中心; 大邱大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文利用KIDS密度泛函研究核物质性质（不可压缩性、对称能、有效质量）对重离子亚垒融合反应的影响，发现截面依赖不可压缩性和对称能刚度，但对有效质量不敏感。
AI 中文摘要
在核反应中，两个原子核之间的相互作用是通过将能量密度方法应用于核能量密度泛函来计算的。我们特别关注核物质性质对融合反应的影响，使用了韩国-IBS-大邱-成均馆（KIDS）密度泛函。对称核物质中状态方程的不确定性通过使用不同的不可压缩性值来考虑，并以40Ca+40Ca系统为例探索了其影响。尽管影响不显著，但从融合截面中可以推断出对不可压缩性的系统性依赖。非对称核物质的影响通过采用与中子星数据一致但仍具有较大不确定性的对称能参数来描述。在应用于48Ca+48Ca和16O+208Pb系统时，我们观察到融合截面依赖于对称能的刚度。我们还考虑了核介质中核子有效质量的不确定性。我们采用了同位旋标量和同位旋矢量有效质量在允许范围内从最小值到最大值变化的模型。与不可压缩性和对称能相反，融合截面对同位旋标量和同位旋矢量有效质量不敏感。在不进行任何唯象调整或模型修改的情况下，通过应用从核结构模型导出的相互作用势，融合过程得到了准确描述。
英文摘要
Interactions between two nuclei in nuclear reactions are calculated by applying the energy density method to nuclear energy density functionals. We particularly focus on the effects of nuclear mat- ter properties on fusion reactions by using the Korea-IBS-Daegu-SKKU (KIDS) density functional. Uncertainty of the equation of state in symmetric nuclear matter is accounted for by using different values of the incompressibility and the effect is explored with the 40Ca+40Ca system. Though not prominent, a systematic dependence on the incompressibility can be inferred from the fusion cross sections. The effect of asymmetric nuclear matter is described by adopting the symmetry energy parameters that are consistent with the neutron star data, but still have large uncertainties. In the application to the 48Ca+48Ca and 16O+208Pb systems, we observe a systematic dependence on the stiffness of the symmetry energy. We also consider the uncertainty of the effective mass of the nucleon in nuclear medium. We employ models that have isoscalar and isovector effective masses varying from minimum to maximum values in the allowed ranges. Contrary to incompressibility and symmetry energy, fusion cross sections are insensitive to the isoscalar and isovector effective masses. Without any phenomenological adjustment or modification of the model, fusion processes are described accurately by applying the interaction potentials derived from nuclear structure mod- els
Comments17 pages, 7 figures, 6 tables
