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

Citation:

Wang XB, Qi C, Xu FR. Isovector channel of quark–meson-coupling model and its effect on symmetry energy. Nuclear Physics A [Internet]. 2011;865:57 - 68.

摘要:

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.

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