Hadronic Matter in the Robertson-Walker Metric and the Early Universe
Abstract
In this work, the Friedman equations for hadronic matter in the Robertson-Walker metric in the early Universe are obtained. We consider the hadronic phase, formed after the hadronization of the quark-gluon plasma, that means times from 10-6s to 1s. The set of equations is derived and the behavior of the system is studied considering one approximate analytical solution.
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