Propagation of mesons in asymmetric nuclear matter in a density dependent coupling model

Details Propagation of mesons in asymmetric nuclear matter in a density dependent coupling model Propagation of mesons in asymmetric nuclear matter in a density dependent coupling model

2001-02-13

arxiv.org/abs/nucl-th/0102029v1

Eur.Phys.J. A13 (2002) 501-515

Physics

Nuclear Physics

Nuclear Theory

17 pages, 15 PostScript figures

Scientific paper

We study the propagation of the light mesons sigma, omega, rho, and a0(980) in dense hadronic matter in an extended derivative scalar coupling model. Within the scheme proposed it is possible to unambiguously define effective density-dependent couplings at the Lagrangian level. We first apply the model to study asymmetric nuclear matter with fixed isospin asymmetry, and then we pay particular attention to hypermatter in beta-equilibrium. The equation of state and the potential contribution to the symmetry coefficient arising from the mean field approximation are investigated.

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