title: Three extra mirror or sequential families: case for a heavy Higgs boson and inert doublet.
abstract: We study the possibility of the existence of extra fermion families and an extra Higgs doublet. We find that requiring the extra Higgs doublet to be inert leaves space for three extra families, allowing for mirror fermion families and a dark matter candidate at the same time. The emerging scenario is very predictive: It consists of a standard model Higgs boson, with a mass above 400 GeV, heavy new quarks between 340 and 500 GeV, light extra neutral leptons, and an inert scalar with a mass below M(Z).
authors.affiliation: CEA, Saclay, DSM-IRFU-SPP, France.
authors.forename: Homero
authors.initials: H
authors.lastname: Martínez
authors.forename: Alejandra
authors.initials: A
authors.lastname: Melfo
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Nesti
authors.forename: Goran
authors.initials: G
authors.lastname: Senjanović