Portoroz 2015: Particle Phenomenology From the Early Universe to High Energy Colliders

Two-loop induced neutrino masses: A model-independent approach

9 Apr 2015, 17:16

23m

James Cook (Portoroz, Slovenia)

Planary Talk Neutrinos

Speaker

Diego Aristizabal (Universite de Liege)

Description

Majorana neutrino masses can originate either at the tree level (type-I, II or III seesaws) or can be radiatively induced. The latter option naturally requires order TeV BSM fields, thus leading to testable neutrino mass generation mechanisms. Based on a two-loop systematic classification of the dimension five effective Weinberg operator, in this talk I will discuss the different realizations one can envisage for neutrino mass generation at the two-loop order.