Help us make Indico better by taking this survey! Aidez-nous à améliorer Indico en répondant à ce sondage !

28 August 2023 to 1 September 2023
University of Vienna
Europe/Vienna timezone

Phenomenological and cosmological implications of a scotogenic three-loop neutrino mass model

30 Aug 2023, 15:30
1h
University of Vienna

University of Vienna

Universitätsring 1 A-1010 Vienna, Austria
Poster Neutrino physics and astrophysics Poster session

Speaker

Tessio de Melo (Universidad Andres Bello / Millenium SAPHIR Institute)

Description

I will discuss a scotogenic model for generating neutrino masses through a three-loop seesaw. It is a minimally extended inert doublet model with a spontaneously broken global symmetry $U(1)'$ and a preserved $\mathbb{Z}_2$ symmetry. The three-loop suppression allows the new particles to have masses at the TeV scale without fine-tuning the Yukawa couplings. The model leads to a rich phenomenology while satisfying all the current constraints imposed by neutrinoless double-beta decay, charged-lepton flavor violation, and electroweak precision observables. The relatively large Yukawa couplings lead to sizable rates for charged lepton flavor violation processes, well within future experimental reach. The model could also successfully explain the $W$ mass anomaly and provides viable fermionic or scalar dark matter candidates.

Submitted on behalf of a Collaboration? No

Primary authors

Dr Antonio Enrique Cárcamo Hernández (Universidad Técnica Federico Santa María) Asmaa Abada Nicolás Bernal (New York University Abu Dhabi) Sergey Kovalenko (Universidad Andres Bello / Millenium SAPHIR Institute) Dr Takashi Toma (Kanazawa University) Tessio de Melo (Universidad Andres Bello / Millenium SAPHIR Institute)

Presentation materials