Phenomenology in the Higgs Triplet Model with the A_4 Symmetry

Details Phenomenology in the Higgs Triplet Model with the A_4 Symmetry Phenomenology in the Higgs Triplet Model with the A_4 Symmetry

2010-05-28

arxiv.org/abs/1005.5338v2

Phys.Rev.D82:036004,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages, typos corrected

Scientific paper

10.1103/PhysRevD.82.036004

We discuss the phenomenology of doubly and singly charged Higgs bosons (of SU(2)_L-triplet fields) in the simplest A_4-symmetric version of the Higgs Triplet Model. Mass eigenstates of these Higgs bosons are obtained explicitly from the Higgs potential. It is shown that their decays into a pair of leptons have unique flavor structures which can be tested at the LHC if some of their masses are below the TeV scale. Sizable decay rates for tau to bar(mu) e e and tau to bar(e) mu mu can be obtained naturally while other tau to l l' l'', mu to bar(e) e e, and l to l' gamma are almost forbidden in this model. Contributions of these Higgs bosons to the non-standard interactions of neutrinos are also considered.

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