Speaker
Description
We investigate the thermodynamics of a quark-meson plasma under external magnetic field in frame of a two-flavor Nambu-Jona-Lasinio (NJL) model. We calculate the thermodynamic functions and the chiral restoration phase transition to order 1 /Nc in an expansion in the inverse number of colours, which is seen to include mesonic exchange. We discuss the magnetic field effect on the bound and resonant states meson and the associated scattering phase shifts. After that we compute their contribution to the behavior of the bulk thermodynamic quantities, such as thermodynamic potential, entropy and energy densities. Finally, we study the chiral restoration phase transitions beyond mean field level, which shows the inverse magnetic catalysis effect.
