Reconciling Nuclear and Astrophysical Constraints

Understand

In view of new constraints put forth by recent observations and measurements in the realm of astrophysics and nuclear physics, we update the non-linear realization of the sigma model as to reflect such constraints.

• By doing this, we obtain new equations of state that may be used to describe neutron stars.
• Such equations of state are obtained by investigating different ways by which the vector mesons self-interact.
• Furthermore, we also investigate the role played by the delta mesons in the model.