Quark-meson coupling model with constituent quarks: Exchange and pionic effects

Details Quark-meson coupling model with constituent quarks: Exchange and pionic effects Quark-meson coupling model with constituent quarks: Exchange and pionic effects

1998-05-07

arxiv.org/abs/nucl-th/9805019v1

Phys.Lett. B432 (1998) 258-265

Physics

Nuclear Physics

Nuclear Theory

12 pages, latex, 1 figure, to appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(98)00654-6

The binding energy of nuclear matter including exchange and pionic effects is calculated in a quark-meson coupling model with massive constituent quarks. As in the case with elementary nucleons in QHD, exchange effects are repulsive. However, the coupling of the mesons directly to the quarks in the nucleons introduces a new effect on the exchange energies that provides an extra repulsive contribution to the binding energy. Pionic effects are not small. Implications of such effects on observables are discussed.

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