Constraining isovector nuclear interactions with giant resonances within a Bayesian approach

Abstract

We put a stringent constraint on the isovector nuclear interactions in the Skyrme-Hartree-Fock model from the centroid energy $E_{-1}$ of the isovector giant dipole resonance in ${}^{208}$Pb as well as its electric polarizability ${\alpha }_D$. Using the Bayesian analysis method, $E_{-1}$ and ${\alpha }_D$ are found to be mostly determined by the nuclear symmetry energy $E_{sym}$ at about ${\rho }^{\star }=0.05$ fm${}^{-3}$ and the isovector nucleon effective mass $m_v^{\star }$ at the saturation density. At $90\%$ confidence level, we obtain $E_{sym}({\rho }^{\star })=16.4_{-0.9}^{+1.0}$ MeV and $m_v^{\star }/m=0.79_{-0.06}^{+0.06}$.

arXiv comment5 pages, 5 figures

References in corpus (24)

• Neutron Star Observations: Prognosis for Equation of State Constraints
• Recent Progress and New Challenges in Isospin Physics with Heavy-Ion Reactions
• Equations of state for supernovae and compact stars
• Isospin Asymmetry in Nuclei and Neutron Stars
• Reaction Dynamics with Exotic Beams
• Complete electric dipole response and the neutron skin in 208Pb
• The information content of a new observable: the case of the nuclear neutron skin
• Constraining the neutron-proton effective mass splitting using empirical constraints on the density dependence of nuclear symmetry energy around normal density
• Density slope of the nuclear symmetry energy from the neutron skin thickness of heavy nuclei
• Constraints on the Symmetry Energy Using the Mass-Radius Relation of Neutron Stars
• The Giant Dipole Resonance as a quantitative constraint on the symmetry energy
• The neutron skin thickness from the measured electric dipole polarizability in ${}^{68}$Ni, ${}^{120}$Sn, and ${}^{208}$Pb
• Nucleon Effective Masses in Neutron-Rich Matter
• Electric Dipole Polarizability in ${}^{208}$Pb: insights from the Droplet Model
• Nuclear symmetry energy and its density slope at normal density extracted from global nucleon optical potentials
• Giant Quadrupole Resonances in 208Pb, the nuclear symmetry energy and the neutron skin thickness
• Symmetry energy from the nuclear collective motion: constraints from dipole, quadrupole, monopole and spin-dipole resonances
• Bayesian Inference of High-density Nuclear Symmetry Energy from Radii of Canonical Neutron Stars
• Low-energy isovector and isoscalar dipole response in neutron-rich nuclei
• Constraining simultaneously nuclear symmetry energy and neutron-proton effective mass splitting with nucleus giant resonances from a dynamical approach
• Constraining the density slope of nuclear symmetry energy at subsaturation densities using electric dipole polarizability in ${}^{208}$Pb
• Isospin splitting of nucleon effective mass from giant resonances in ${}^{208}$Pb
• Open-Shell Nuclei and Excited States from Multi-Reference Normal-Ordered Hamiltonians
• Dipole response in neutron-rich nuclei with new Skyrme interactions

Cited by in corpus (15)

• Progress in Constraining Nuclear Symmetry Energy Using Neutron Star Observables Since GW170817
• Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
• Comparison of Heavy-Ion Transport Simulations: Mean-field Dynamics in a Box
• Bayesian Inference of the Symmetry Energy and the Neutron Skin in ${}^{48}$Ca and ${}^{208}$Pb from CREX and PREX-2
• Bayesian inference of nuclear symmetry energy from measured and imagined neutron skin thickness in ${}^{116,118,120,122,124,130,132}$Sn, ${}^{208}$Pb, and ${}^{48}$Ca
• Observing Supernova Neutrino Light Curves with Super-Kamiokande. II. Impact of the Nuclear Equation of State
• Neutron-proton effective mass splitting in neutron-rich matter
• Constraining isovector nuclear interactions with giant dipole resonance and neutron skin in ${}^{208}$Pb from a Bayesian approach
• Bayesian inference of finite-nuclei observables based on the KIDS model
• Bayesian inference on the isospin splitting of nucleon effective mass from giant resonances in ${}^{208}$Pb
• Auxiliary Function Approach for Determining Symmetry Energy at Supra-saturation Densities
• Impact of ground-state properties and collective excitations on the Skyrme ansatz: a Bayesian study
• Shell quenching in nuclear charge radii based on Monte Carlo dropout Bayesian neural network
• Constraining neutron-proton effective mass splitting through nuclear giant dipole resonance within transport approach
• Finding signatures of the nuclear symmetry energy in heavy-ion collisions with deep learning