Speaker
Description
We investigate the 2SC phase at medium baryon density using the quark-meson-diquark model. Our analysis involves calculating the thermodynamic potential in the mean field approximation to one fermion loop. The model includes the following effective degrees of freedom: the sigma, pions, quarks, and diquarks. Parameters are expressed with the physical values of the sigma mass, pion mass, and pion decay constant. We introduce five new free parameters through the coupling of the diquark with the sigma, pion, and quark, as well as the diquark potential. The new beta functions are derived in the same approximation and compared to those of the established parameters in the quark-meson model. We use the model to map out the phase diagram in the $\mu_B-T$ plane.
