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Elsevier, Nuclear Physics A, 1(865), p. 57-68

DOI: 10.1016/j.nuclphysa.2011.07.001

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Isovector channel of quark-meson-coupling model and its effect on symmetry energy

Journal article published in 2010 by X. B. Wang, Chong Qi ORCID, F. R. Xu
This paper is available in a repository.
This paper is available in a repository.

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Abstract

The non-relativistic approximation of the quark–meson-coupling model has been discussed and compared with the Skyrme–Hartree–Fock model which includes spin exchanges. Calculations show that the spin-exchange interaction has important effect on the descriptions of finite nuclei and nuclear matter through the Fock exchange. Also in the quark–meson-coupling model, it is the Fock exchange that leads to a nonlinear density-dependent isovector channel and changes the density-dependent behavior of the symmetry energy.