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We explore in detail the Higgs phenomenology that results in a model whereright-handed neutrinos have a mass scale of the order of the electroweak scale.In this model all scales arise from spontaneous symmetry breaking, and this isachieved with a Higgs sector that includes an extra Higgs singlet in additionto the standard model Higgs doublet. The scalar spectrum includes two neutralCP-even states ($h$ and $H$ with $m_{h} < m_{H}$)and a neutral CP-odd state($\sigma$) that can be identified as a pseudo-Majoron. The parameter of theHiggs potential are constrained using a perturbativity criteria. Higgs BR andcross-sections are discussed, with special emphasis on the detection at theLHC.

Electroweak right-handed neutrinos and new signals at the LHC