Estudo das Propriedades da Matéria Nucelar Através de Modelos Hadrônicos.

Abstract

Currently one of the main problems addressed in high energy physics is the study of the behavior of nuclear matter under extreme conditions of temperature and / or density. For this one needs good models describing this behavior in experimentally accessible regions (at zero temperature, density, saturation and small neutron-proton asymmetry) to be then extrapolated to extreme regions. One of the theoretical treatments widely used in the description of average nuclear properties is done through the study of Relativistic Mean Field model, known in literature as a model of Walecka. Many versions of this model are used to describe a wide variety of phenomena in nuclear physics, such as the properties of nuclear matter, neutron stars, finite nuclei, nuclear phase transition, among others. Here, we used the latest parameterization of these models, the literature to describe the properties and behavior of nuclear matter through its characteristic parameters, among then we highlight the power of volume, saturation density, incompressibility and symmetry energy. Results of the nonlinear parameterizations NL3 and NL3-I I are the best to describe these properties.