Ponente
Frank Deppisch
(Univ College London)
Descripción
Interactions that manifest themselves as lepton number violating (LNV) processes in combination with sphaleron transitions typically erase any pre-existing baryon asymmetry of the Universe. We demonstrate in a model-independent approach that the observation of LNV processes would impose a stringent constraint on mechanisms of high-scale baryogenesis, including leptogenesis scenarios. Specifically we will focus on the impact of neutrinoless double beta decay as well as LNV processes at the LHC to determine a lower limit on the rate of lepton number washout processes in the early Universe and thereby an upper limit on the scale of baryogenesis mechanisms. In combination with the observation of lepton flavor violating processes, we can further strengthen this argument, closing the loophole of asymmetries being stored in different lepton flavors.
Autor primario
Frank Deppisch
(Univ College London)
