Kolomeitsev, Evgeni E., 1970- Delta isobars in relativistic mean-field models with sigma-scaled hadron masses and couplings / E. E. Kolomeitsev, K. A. Maslov, D. N. Voskresensky. -- We extend the relativistic mean-field models with hadron masses and meson-baryon coupling constants dependent on the scalar sigma field, studied previously to incorporate Delta(1232) baryons. Available empirical information is analyzed to put constraints on the couplings of Delta s with meson fields. Conditions for the appearance of Delta s are studied. We demonstrate that with inclusion of the Delta s our equations of state continue to fulfill majority of known empirical constraints including the pressure-density constraint from heavy-ion collisions, the constraint on the maximum mass of the neutron stars, the direct Urea and the gravitational baryon mass ratio constraints. (C) 2017 Elsevier B.V. All rights reserved.

In Nuclear Physics A. -- Amsterdam : Elsevier B.V., 2017. -- ISSN 0375-9474. -- ISSN 1873-1554. -- Vol. 961 (2017), pp. 106-141

1. neutron stars 2. equation of state 3. heavy ion collisions

I. Maslov, Konstantin A.
II. Voskresensky, Dmitri
III. Nuclear Physics A. -- Vol. 961 (2017), pp. 106-141

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