Chirally improved quark Pauli blocking in nuclear matter and applications to quark deconfinement in neutron stars

Understand

The relativistic mean field (RMF) model of the nuclear matter equation of state has been modified by including the effect of Pauli-blocking owing to quark exchange between the baryons.

• Different schemes of a chiral enhancement of the quark Pauli blocking have been suggested according to the adopted density dependence of the dynamical quark mass.
• The resulting equations of state for the pressure are compared to the RMF model DD2 with excluded volume correction.
• On the basis of this comparison a density-dependent nucleon volume is extracted which parametrises the quark Pauli blocking effect in the respective scheme of chiral enhancement.