Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5494057 | Nuclear Physics A | 2017 | 36 Pages |
Abstract
We extend the relativistic mean-field models with hadron masses and meson-baryon coupling constants dependent on the scalar Ï field, studied previously to incorporate Î(1232) baryons. Available empirical information is analyzed to put constraints on the couplings of Îs with meson fields. Conditions for the appearance of Îs are studied. We demonstrate that with inclusion of the Îs 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 Urca and the gravitational-baryon mass ratio constraints.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
E.E. Kolomeitsev, K.A. Maslov, D.N. Voskresensky,