ffronimo / reheating Goto Github PK

We provide a consistent description of the reheating era of a constrained Gauss-Bonnet model by using the same free parameters that result in a viable inflationary era. The theory predicts a propagation velocity of tensor perturbations which is equal to unity in order to be in agreement with the GW170817 event. The reheating era turns out to be viable if one considers that the effective EoS is equal to unity thus a primordial stiff matter era prior to the reheating era is predicted. In the end, a comparison between gravitational baryogenesis during the stiff matter era induced by CP violating terms containing either the Ricci scalar of the Gauss-Bonnet invariant is available.