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We consider a neutrinophilic Higgs scenario where the Standard Model isextended by one additional Higgs doublet and three generations of singletright-handed Majorana neutrinos. Light neutrino masses are generated throughmixing with the heavy neutrinos via Type-I seesaw mechanism when theneutrinophilic Higgs gets a vacuum expectation value (VEV). The Dirac neutrinoYukawa coupling in this scenario can be sizable compared to those in thecanonical Type-I seesaw mechanism owing to the small neutrinophilic Higgs VEVgiving rise to interesting phenomenological consequences. We have exploredvarious signal regions likely to provide a hint of such a scenario at the LHCas well as at future $e^+e^-$ colliders. We have also highlighted theconsequences of light neutrino mass hierarchies in collider phenomenology thatcan complement the findings of neutrino oscillation experiments.

Exploring collider aspects of a neutrinophilic Higgs doublet model in multilepton channels