Leptogenesis and GeV-scale supercooled first order phase transition scenarios

We focus on ARS Leptogenesis scenarios where the right-handed neutrinos are below the electroweak scale and the CP-violating effects are induced by the coherent superposition of different right-handed mass eigenstates. In this framework we analyze how supercooled first order phase transitions in early universe can produce a brief inflationary-like period that gives a small dilution of the baryon asymmetry YB produced by Leptogenesis. Using a numerical approach we aim to reproduce the YB values derived from CMB and BBN in this new scenario fitting the parameters of our Leptogenesis model. This should allow to derive the new parameter space and study the effect of dilution on it.