Nuclear Matter and Finite Nuclei: Recent Studies Based on Parity Doublet Model
Year: 2024
Type: article
Abstract: In this review, we summarize recent studies on nuclear matter and finite nuclei based on parity doublet models. We first construct a parity doublet model (PDM), which includes the chiral invariant mass m0 of nucleons together with the mass generated by the spontaneous chiral symmetry breaking. We then study the density dependence of the symmetry energy in the PDM, which shows that the symmetry energy is larger for smaller chiral inavariant mass. Then, we investigate some finite nuclei by applying the Relativistic Continuum Hartree–Bogoliubov (RCHB) theory to the PDM. We present the root-mean-square deviation (RMSD) of the binding energies and charge radii, and show that m0=700 MeV is preferred by the nuclear properties. Finally, we modify the PDM by adding the isovector scalar meson a0(980), and show that the inclusion of the a0(980) enlarges the symmetry energy of the infinite nuclear matter.
Source: Symmetry
DOI: 10.3390/sym16091238
Authors: Yuk-Kei Kong, Youngman Kim, Masayasu Harada
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,728
Awards: Study of Neutron Stars and Elucidation of origin of hadron masses using chiral effective models, G2362430747, G2629674773, G4077007235, G4547971943, Revealing the mysteries of heavy-quark exotics from QCD, Quest for the origin of hadron masses using effective theories based on the chiral symmetry and heavy quark symmetry, G8401628978
OpenAlex ID: W4402750459