Speaker
Dr
Luca Di Luzio
(Genoa University and INFN, Genoa)
Description
I will discuss few minimal scalar extensions of the standard electroweak model that provide a simple setup for massive neutrinos in connection with an invisible axion. The presence of a chiral U(1) a la Peccei-Quinn drives the pattern of Majorana neutrino masses while providing a dynamical solution to the strong CP problem and an axion as a dark matter candidate. Such a renormalizable framework is paradigmatically applied to type-II seesaw and to two viable models for neutrino oscillations where neutrino masses arise at one and two loops, respectively. I will comment on the naturalness of the effective setups as well as on their implications for vacuum stability and electroweak baryogenesis.
Authors
Helena Kolesova
(IPNP Charles University, Prague)
Dr
Luca Di Luzio
(Genoa University and INFN, Genoa)
Dr
Michal Malinsky
(IPNP Charles University, Prague)
Dr
Stefano Bertolini
(INFN and SISSA, Trieste)
