Lepton Flavour Violating Decays tau to lll and mu to e gamma in the Higgs Triplet Model
arXiv:0904.3640 · doi:10.1103/PhysRevD.79.113010
Abstract
Singly and doubly charged Higgs bosons in the Higgs Triplet Model mediate the lepton flavour violating (LFV) decays tau to \bar{l}ll and mu to e gamma. The LFV decay rates are proportional to products of two triplet Yukawa couplings (h_{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 to \bar{l}ll and/or mu to e gamma is possible at ongoing and planned experiments. The conditions for respecting the stringent upper limit for mu to eee are studied in detail, with emphasis given to the possibility of |h_{ee}|\simeq 0 which can only be realized if Majorana phases are present.
25 pages, 17 figures, references added, version to appear in Phys. Rev. D
References in corpus (23)
- Double Beta Decay, Majorana Neutrinos, and Neutrino Mass
- Measurement of Neutrino Oscillation by the K2K Experiment
- Distinguishing seesaw models at LHC with multi-lepton signals
- Flavour physics of leptons and dipole moments
- Neutrino Masses and the LHC: Testing Type II Seesaw
- Pair Production of Doubly-Charged Scalars: Neutrino Mass Constraints and Signals at the LHC
- Prospects for the Zee-Babu Model at the LHC and low energy experiments
- Probing Majorana Phases and Neutrino Mass Spectrum in the Higgs Triplet Model at the LHC
- Neutrino mass hierarchy and Majorana CP phases within the Higgs triplet model at the LHC
- Direct determination of neutrino mass parameters at future colliders
- Search for Lepton Flavor Violating tau Decays into Three Leptons
- Gauge and Yukawa mediated supersymmetry breaking in the triplet seesaw scenario
- Higgs Triplets and Limits from Precision Measurements
- (Non)decoupling of the Higgs triplet effects
- Search for pair production of doubly-charged Higgs bosons in the H^{++}H^{--}^ to mu^+mu^+mu^-mu^- final state at D0
- Testing Radiative Neutrino Mass Generation at the LHC
- Lepton Flavour Violating tau Decays in the Left-Right Symmetric Model
- On the Physics Case of a Super Flavour Factory
- A Yukawa coupling parameterization for type I+ II seesaw formula and applications to lepton flavor violation and leptogenesis
- The lepton-flavour violating decay τ\to μμ\antimu at the LHC
- The see-saw mechanism: neutrino mixing, leptogenesis and lepton flavor violation
- Analysis of Lepton Flavor Violating τ^\pm \to μ^\pm μ^\pm μ^\mp Decays
- General Conditions for Lepton Flavour Violation at Tree- and 1-Loop Level