Higgs triplets at like-sign linear colliders and neutrino mixing

Details Higgs triplets at like-sign linear colliders and neutrino mixing Higgs triplets at like-sign linear colliders and neutrino mixing

2010-11-16

arxiv.org/abs/1011.3606v1

Phys.Rev.D83:073005,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 6 figures

Scientific paper

10.1103/PhysRevD.83.073005

We study the phenomenology of the type-II seesaw model at a linear e^-e^- collider. We show that the process e^-e^- \rightarrow alpha^-beta^- (alpha, beta = e, mu, tau 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.

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