Primordial quark bubbles with leptonic component

We introduce the leptonic component to discuss macroscopic bulk properties of primordial bubble quark matter which survived the confinement phase transition in the universe at high temperature. Considering quark matter in equilibrium with the weak interactions, we analyze the boundaries in the mu - mue plane for which betha equilibrium and charge neutrality can be valid, being mu and mue the chemical potential associated to the baryonic density and the electrons, respectively.