Lepton flavor violating Higgs bosons and {tau}{yields}{mu}{gamma}

Journal Article · Sat May 01 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.095016· OSTI ID:21409980

Davidson, Sacha; Grenier, Gerald ^[1]

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1. IPNL, Universite de Lyon, Universite Lyon 1, CNRS/IN2P3, 4 rue E. Fermi 69622 Villeurbanne cedex (France)

We update phenomenological constraints on a two Higgs doublet model with lepton flavor nonconserving Yukawa couplings. We review that tan{beta} is ambiguous in such 'type III' models, and define it from the {tau} Yukawa coupling. The neutral scalars {phi} could be searched for at hadron colliders in {phi}{yields}{tau}{mu} and are constrained by the rare decay {tau}{yields}{mu}{gamma}. The Feynman diagrams for the collider process, with Higgs production via gluon fusion, are similar to the two-loop ''Barr-Zee'' diagrams, which contribute to {tau}{yields}{mu}{gamma}. Some ''tuning'' is required to obtain a collider cross section of order the standard model expectation for {sigma}(gg{yields}h{sub SM{yields}{tau}}{sup +{tau}-}), while agreeing with the current bound from {tau}{yields}{mu}{gamma}.

• OSTI ID: 21409980
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COMPOSITE MODELS
COUPLING
CROSS SECTIONS
DECAY
DIAGRAMS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FEYNMAN DIAGRAM
FIELD THEORIES
FLAVOR MODEL
GAMMA RADIATION
GLUONS
GRAND UNIFIED THEORY
HADRONS
HEAVY LEPTONS
HIGGS BOSONS
HIGGS MODEL
INFORMATION
IONIZING RADIATIONS
LEPTONS
MATHEMATICAL MODELS
MESONS
MUONS
NUCLEAR POTENTIAL
PARTICLE DECAY
PARTICLE MODELS
PHI MESONS
POSTULATED PARTICLES
POTENTIALS
QUANTUM FIELD THEORY
QUARK MODEL
RADIATIONS
RADIATIVE DECAY
STANDARD MODEL
TAU PARTICLES
UNIFIED GAUGE MODELS
YUKAWA POTENTIAL