Ponente
Alexis Plascencia
(IPPP, Durham University)
Descripción
In this talk I aim to draw some connections between dark matter and leptogenesis, by connecting both to a single energy scale which is radiatively generated and therefore exponentially suppressed compared to the UV cutoff of the theory. In our setup we extend the Standard Model (SM) by a dark sector, namely a non-abelian SU(2) hidden sector that is coupled to the SM via the Higgs portal, and a singlet sector with a real singlet σ and three right-handed Majorana neutrinos N_i . Due to a custodial symmetry all three gauge bosons X_i have the same mass and are absolutely stable, making them suitable dark matter candidates. The lepton flavour asymmetry is produced during oscillations of the right-handed neutrinos, which have masses around the electroweak scale or below.
Autor primario
Alexis Plascencia
(IPPP, Durham University)
