Studying ΛN interactions through the 208Pb(e,e’K+)208ΛTl reaction
Studying ΛN interactions through the 208Pb(e,e’K+)208ΛTl reaction
复制标题
通过 208Pb(e,e’K+)208ΛTl 反应研究 ΛN 相互作用
DOI：
10.1051/epjconf/202227101007
复制
发表时间：
2022
影响因子：
--
通讯作者：
Franco Garibaldi et al.
中科院分区：
文献类型：
--
作者：
Toshiyuki Gogami et al.;Franco Garibaldi et al.
超子之谜是目前致密星物理中尚未解决的关键问题之一，即所有预测中子星星核超子出现的模型都很难解释质量为两个太阳的中子星星的存在。为了解决超子之谜，杰斐逊实验室超核合作组织提出了一个实验计划，并得到了杰斐逊实验室（JLab）PAC的批准。本计划包括对40Ca和48Ca核的（e，e ′ K）反应的研究，旨在研究超子动力学的同位旋依赖性，以及对208Pb核的（e，e ′ K）反应的研究。这是本文的主题，它将利用208 Pb的性质在很大程度上反映了中子内部均匀核物质的性质这一事实使其成为研究中子星星特征的理想工具。2020年，Jlab PAC批准了研究208Pb反应（e，e'K）的提案。
The hyperon puzzle, the observation that the two-solar-mass neutron star existence is hardly explained by all models predicting the appearance of hyperons in the neutron star core, is currently one of the unsolved key issues in the physics of compact stars. To solve the hyperon puzzle an experimental program has been proposed by the Jefferson lab hypernuclear collaboration and approved by the Jefferson Lab (JLab) PAC. This program consists in the study of the reaction (e, e’K) on40Ca and48Ca nuclei, aimed at investigating the isospin dependence of hyperon dynamics, and in the study of the reaction (e, e’K) on208Pb nucleus, which is the subject of this paper and which will take advantage of the fact that208Pb properties largely reflects those of the uniform nuclear matter present in the interior of the neutron stars making it the ideal tool to investigate neutron star features. The proposal of the study of the reaction (e, e’K) on208Pb was approved by the Jlab PAC in 2020.