Nuclear symmetry energy and the PREX-CREX neutron skin puzzle within the KIDS framework

2022/10/06 by P. Papakonstantinou, Papakonstantinou, Panagiota
Chemistry · Physics and Astronomy · #Advanced NMR Techniques and Applications #FOS: Physical sciences #Nuclear Physics and Applications #Nuclear Theory (nucl-th) #Nuclear physics research studies

paper · pdf · doi:10.48550/arxiv.2210.02696

openalex publication_date 2022/10/06 · openalex created_date 2022/10/08 · openalex updated_date 2026/07/28

Abstract

I briefly review the KIDS theoretical framework for the nuclear equation of state (EoS) and energy density functional (EDF), I discuss recent results for the curvature parameter of the symmetry energy, and I address the PREX-CREX puzzle. I show that it is possible to obtain EDF models which can reproduce both PREX-II and CREX results each within its respective error bars. Such EDFs correspond to EoSs which soften towards low densities, as could be attributed to clusterization. Before such a scenario is considered viable, the dipole polarizability should also be examined.

Related

• Density dependence of the nuclear symmetry energy and neutron skin thickness in the KIDS framework
• Symmetry energy in dilute matter and the neutron skin
• Density Dependence of the Symmetry Energy in the Post PREX-CREX Era
• Compression modulus and symmetry energy of nuclear matter with KIDS density functional
• PREX and CREX: Evidence for Strong Isovector Spin-Orbit Interaction