论文标题
$^{48} $ CA（CREX）和$^{208} $ pb（prex-ii）在核能密度功能上的含义对$^{48} $ CA（CREX）和$^{208} $ ca（CREX）和$^{208}
Implications of parity-violating electron scattering experiments on $^{48}$Ca (CREX) and $^{208}$Pb (PREX-II) for nuclear energy density functionals
论文作者
论文摘要
最近在$^{48} $ CA（CREX）和$^{208} $ PB（PREX-II）上进行了$^{48} $ ca（crex）上的最新精确平价电子散射实验提供了有关Nuclei中中子皮肤形成的新见解。在能量密度功能（EDF）框架内，我们研究了有限核的Crex和Prex-II数据对核物质对称能量的含义：中子皮肤厚度和偶极极化性。来自Crex和Prex-II实验的弱电荷形式因素直接用于约束相对论密度依赖性点耦合EDF。使用CREX数据建立的EDF获得的对称能量参数的值较小，中子皮肤厚度和偶极性极化性均以$^{48} $ CA和$^{208} $ PB的相比，与使用PERX-II数据以及先前建立的EDF获得的EDF相比。提出的分析表明，CREX和PEX-II实验不能为EDF的等级部门提供一致的约束，需要进一步的理论和实验研究。
Recent precise parity-violating electron scattering experiments on $^{48}$Ca (CREX) and $^{208}$Pb (PREX-II) provide a new insight on the formation of neutron skin in nuclei. Within the energy density functional (EDF) framework, we investigate the implications of CREX and PREX-II data on nuclear matter symmetry energy and isovector properties of finite nuclei: neutron skin thickness and dipole polarizability. The weak-charge form factors from the CREX and PREX-II experiments are employed directly in constraining the relativistic density-dependent point coupling EDFs. The EDF established with the CREX data acquires considerably smaller values of the symmetry energy parameters, neutron skin thickness and dipole polarizability both for $^{48}$Ca and $^{208}$Pb, in comparison to the EDF obtained using the PREX-II data, and previously established EDFs. Presented analysis shows that CREX and PREX-II experiments could not provide consistent constraints for the isovector sector of the EDFs, and further theoretical and experimental studies are required.
