Speaker
Description
Nuclear energy density functional theory provides a powerful and widely used framework for describing nuclear structure across the nuclear chart. Despite its overall success, recent high-precision experimental data and astrophysical observations have challenged existing nuclear energy density functionals, particularly in the isovector sector. For example, both relativistic and non-relativistic functionals face difficulties in simultaneously reproducing parity-violating electron scattering results for Pb208 and Ca48 (PREX-II and CREX), as well as nuclear electric dipole polarizabilities. These difficulties motivate further theoretical developments. In this talk, I will briefly discuss the possible role of isovector spin-orbit effects in this context and outline possible strategies for improving Fayans energy density functionals using Bayesian inference.