Self-consistent description of finite nuclei based on a relativistic quark model

Abstract

Relativistic Hartree equations for spherical nuclei have been derived from a relativistic quark model of the structure of bound nucleons which interact through the (self-consistent) exchange of scalar (σ) and vector (ω and ρ) mesons. The coupling constants and the mass of the σ-meson are determined from the properties of symmetric nuclear matter and the rms charge radius in 40 Ca. Calculated properties of static, closed-shell nuclei from 16 O to 208 Pb are compared with experimental data and with results of Quantum Hadrodynamics (QHD). The dependence of the results on the nucleon size and the quark mass is investigated. Several possible extensions of the model are also discussed.

J∕Ψ Mass Shift and J∕Ψ-Nuclear Bound State

“…As examples, we show in Fig. 3 The nucleon density distributions for nuclei ( 208 Pb nucleus in this report) are also calculated within the QMC model [16]. For a 4 He nucleus, we use the parametrization for the density distribution obtained in Ref.…”

The nuclear spin-orbit force in chiral effective field theories

“…[32] and [10], and triangles are for QMC and ZM models from Refs. [24] and [33]. (The models with filled symbols contain tensor interactions and are discussed in Sect.…”

Neutron star matter in the quark-meson coupling model in strong magnetic fields

“…In contrast to the RMF approach, the quark structure of nucleons plays a crucial role in the QMC model, and the basic coupling constants are defined at quark level. The QMC model has been subsequently extended and applied to various problems of nuclear matter and finite nuclei with reasonable success [16,17,18]. Furthermore, the model has also been used to investigate the properties of neutron stars with the inclusion of hyperons, quarks, and kaon condensation [19,20,21].…”