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EnglishWe propose a method to introduce Fock term contributions in relativistic models of fermions coupled to mesons, including self-interactions for the mesonic fields. We show that effects on equilibrium properties and on the dynamical response of the fermionic system can be consistently accounted for. Some implications on equilibrium properties of asymmetric nuclear matter are discussed. In particular an indication is emerging for a reduced contribution of charged mesons to the symmetry term of the nuclear equation of state around normal density.
http://hdl.handle.net/20.500.11769/13519| Titolo: | Fock exchange terms in nonlinear quantum hadrodynamics |
| Autori interni: | GRECO, VINCENZO |
| Data di pubblicazione: | 2001 |
| Rivista: | PHYSICAL REVIEW. C, NUCLEAR PHYSICS |
| Abstract: | We propose a method to introduce Fock term contributions in relativistic models of fermions coupled to mesons, including self-interactions for the mesonic fields. We show that effects on equilibrium properties and on the dynamical response of the fermionic system can be consistently accounted for. Some implications on equilibrium properties of asymmetric nuclear matter are discussed. In particular an indication is emerging for a reduced contribution of charged mesons to the symmetry term of the nuclear equation of state around normal density. |
| Handle: | http://hdl.handle.net/20.500.11769/13519 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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