Speaker
Dr
Tomas Gonzalo
(Monash University)
Description
The lightness of the three active neutrinos can be explained by the existence of an equal number of exotic heavy neutral fermions, with a mass ranging from a few MeV to around a TeV. Constraints from different sources such as direct detection, lepton flavour violation and electroweak precision observables, impose strong upper limits on their mixing of these sterile neutrinos to the active neutrinos. We present here the results of a global fit using the GAMBIT tool of a model with three heavy right-handed neutrinos, combining all experimental constraints from collider, precision and cosmological origin.
Authors
Christoph Weniger
(University of Amsterdam)
Dr
Julia Harz
(Technical University of Munich (TUM))
Marcin Chrzaszcz
(Polish Academy of Sciences (PL))
Marco Drewes
(Ecole Polytechnique Federale de Lausanne (EPFL))
Suraj Krishnamurthy
(University of Amsterdam)
Dr
Tomas Gonzalo
(Monash University)
