dr hab. Andrzej Wereszczyński (UJ)

Neutron stars and EoS of nuclear matter in the near-BPS Skyrme model

Using a low energy effective model of QCD - the near-BPS Skyrme model (which provides a very good description of nuclear binding energies) I will study neutron stars with the back reaction of gravity on the matter field fully taken into account. After fitting 2 parameters of the model in B=1 sector I will find neutron stars ($B_{max} sim 10^{57}$) with a very good agreement with observational data. I will compute EoS and show that nuclear matter becomes stiffer when mass of the star increases.