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Weekly seminars

A Neutrinophilic Two Higgs Doublet Model As UV Completion For The Inverse Seesaw

by Zahra Tabrizi (Univ. Sao Paulo)

mardi 21 mars 2017 de à (Europe/Paris)
at Annecy-le-Vieux ( Auditorium )
9 chemin de Bellevue 74940 ANNECY LE VIEUX
More than two decades of neutrino experiments have confirmed that neutrinos are massive particles and oscillate. The seesaw mechanism is one of the most elegant and economic ways to explain the smallness of neutrino masse, however, it is inaccessible to current experiments. An interesting variation of the mechanism, which allows for TeV New Physics (NP), is given by the (double) inverse seesaw mechanism. In this work we show how the idea of neutrinophilic Two-Higgs-Doublet Model (ν2HDM) can be used to build a realistic and phenomenologically viable inverse seesaw model. We impose theoretical and experimental constrains on the model and show that while it is not difficult to have a phenomenologically viable neutrino physics, the parameter space is strongly constrained by the Higgs and Z boson decays and by electroweak precision tests.