On the Density Dependent Nuclear Matter Compressibility

Understand

In the present work we apply a quantum hadrodynamic effective model in the mean-field approximation to the description of neutron stars.

• We consider an adjustable derivative-coupling model and study the parameter influence on the dynamics of the system by analyzing the full range of values they can take.
• We establish a set of parameters which define a specific model that is able to describe phenomenological properties such as the effective nucleon mass at saturation as well as global static properties of neutron stars (mass and radius).
• If one uses observational data to fix the maximum mass for neutron stars by a specific model, we are able to predict the compression modulus of nuclear matter K = 257,2MeV.