Speaker
Jean-Loup Tastet
(UAM-IFT)
Description
Axion-like particles (ALPs) are expected to arise in a wide variety of models, whenever a global symmetry is spontaneously broken. Although they can produce a rich phenomenology, they typically need to be supplemented by extra new physics in order to explain neutrino masses. In this talk, we will discuss the interplay of axion-like particles and heavy neutral leptons in a collider setting, considering various ALP couplings and type-I see-saw realisations. We will show that the unique processes that arise in the presence of both particles can lead to strong joint constraints at the LHC and a future muon collider.
Authors
Arturo de Giorgi
(Universidad Autónoma de Madrid (UAM) - Institute of Theoretical Physics (IFT))
Jean-Loup Tastet
(UAM-IFT)
Luca Merlo
(Universidad Autonoma de Madrid)
Marta Burgos Marcos
(Maastricht University)
