Lepton flavor violating decays {tau}{yields}lll and {mu}{yields}e{gamma} in the Higgs triplet model
- Department of Physics, National Central University, Jhongli 320, Taiwan (China)
- Department of Physics, Tohoku University, Sendai 980-8578 (Japan)
- SISSA, via Beirut 2-4, I-34014 Trieste (Italy)
Singly and doubly charged Higgs bosons in the Higgs triplet model mediate the lepton flavor violating (LFV) decays {tau}{yields}lll and {mu}{yields}e{gamma}. The lepton flavor violating decay rates are proportional to products of two triplet Yukawa couplings (h{sub ij}) which can be expressed in terms of the parameters of the neutrino mass matrix and an unknown triplet vacuum expectation value. We determine the parameter space of the neutrino mass matrix in which a signal for {tau}{yields}lll and/or {mu}{yields}e{gamma} is possible at ongoing and planned experiments. The conditions for respecting the stringent upper limit for {mu}{yields}eee are studied in detail, with emphasis given to the possibility of |h{sub ee}|{approx_equal}0, which can only be realized if Majorana phases are present.
- OSTI ID:
- 21296430
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 79, Issue 11; Other Information: DOI: 10.1103/PhysRevD.79.113010; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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