Ponente
Daniel Wegman
(ULG, IFPA)
Descripción
Accidental matter models are scenarios where the beyond-Standard-Model physics preserves the Standard Model accidental and approximate symmetries. Constraints from lepton-number-violating interactions, in particular those enforced by Majorana neutrino masses, fix the scale of the physics that can break these symmetries to 10^{15} GeV, and thus their effects are automatically suppressed. We show that under fairly-reasonable assumptions alternative scenarios where this scale is as low as 10^6 GeV are possible constructing. This requires the accidental matter to play an active role in neutrino mass generation, and unavoidably lead to radiatively induced neutrino masses. In these cases new observables are potentially accessible in indirect searches, thus increasing their experimental testability. Of particular relevance are processes involving rare charged lepton-flavor-violating decays.
Autor primario
Daniel Wegman
(ULG, IFPA)
Coautores
Sra.
Catarina Simões
(CFTP, IST)
Dr.
Diego Aristizabal
(ULg, IFPA)
