Speaker
Peter Matak
(Comenius University (SK))
Description
We present a leptogenesis model in which right-handed neutrinos undergoing ultraviolet freeze-in are the only out-of-equilibrium species necessary to generate the observed matter-antimatter asymmetry in the early universe. It is shown that even though the lepton number source term vanishes, opposite asymmetries of the decoupled right-handed neutrinos and standard model leptons are washed in. The talk is based on Phys. Rev. D 110, 055042.
Authors
Jan Heisig
(RWTH Aachen University)
Julian Heeck
Peter Matak
(Comenius University (SK))
Tomas Blazek
(Comenius University (SK))
Viktor Zaujec
(Comenius University in Bratislava)
