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Free keywords:
High Energy Physics - Phenomenology, hep-ph,High Energy Physics - Experiment, hep-ex
Abstract:
We study the phenomenology of the type-II seesaw model at a linear e-e-
collider. We show that the process e-e- -> α-β- (α, β = e, μ, τ being charged leptons) mediated by a doubly charged scalar is
very sensitive to the neutrino parameters, in particular the absolute neutrino
mass scale and the Majorana CP-violating phases. We identify the regions in
parameter space in which appreciable collider signatures in the channel with
two like-sign muons in the final state are possible. This includes Higgs
triplet masses beyond the reach of the LHC.
