Phenomenology in the Higgs triplet model with the A{sub 4} symmetry

Journal Article · Sun Aug 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.036004· OSTI ID:21432914

Fukuyama, Takeshi ^[1]; Sugiyama, Hiroaki ^[1]; Tsumura, Koji ^[2]

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1. Department of Physics and R-GIRO, Ritsumeikan University, Kusatsu, Shiga, 525-8577 (Japan)
2. The Abdus Salam ICTP of UNESCO and IAEA, Strada Costiera 11, 34151 Trieste (Italy)

We discuss the phenomenology of doubly and singly charged Higgs bosons [of SU(2){sub L}-triplet fields] in the simplest A{sub 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}{yields}{mu}ee and {tau}{yields}e{mu}{mu} can be obtained naturally, while other {tau}{yields}ll{sup '}l{sup ''}, {mu}{yields}eee, and l{yields}l{sup '{gamma}}, are almost forbidden in this model. Contributions of these Higgs bosons to the nonstandard interactions of neutrinos are also considered.

• OSTI ID: 21432914
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 3; Other Information: DOI: 10.1103/PhysRevD.82.036004; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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