Testing the Field Correlator Method with astrophysical constraints

Abstract

We study the structure of hybrid stars with the Field Correlator Method, extended to the zero temperature limit, for the quark phase. For the hadronic phase, we use the microscopic Brueckner-Hartree- Fock many-body theory. The comparison with the neutron star mass phenomenology puts serious constraints on the currently adopted values of the gluon condensate $G_2 \simeq 0.006-0.007 \rm {GeV^4}$, and the large distance static $Q \bar Q$ potential.