# Phenomenology of lepton flavor violation in 2HDM(III) from (g-2)_mu and leptonic decays

- Authors
- Publication Date
- Aug 12, 2002
- Identifiers
- DOI: 10.1103/PhysRevD.67.075011
- OAI: oai:cds.cern.ch:576303
- Source
- CERN Document Server
- Keywords
- Language
- English
- License
- Unknown
- External links

## Abstract

We constrain some lepton flavor violating vertices in the context of the two Higgs doublet model type III, assuming that the lightest scalar Higgs mass m_{h^0} is about 115 GeV and that the pseudoscalar Higgs is heavier than h^0. Specifically, based on the g-2 muon factor as well as the leptonic decays mu --> e gamma, tau --> mu gamma the following quite general bounds are obtained, 7.62 times 10^{-4} <~ xi_{mu tau}^2 <~ 4.44 times 10^{-2}, xi_{e tau}^2 xi_{mu tau}^2 <~ 2.24 times 10^{-16}, xi_{e tau}^2 <~ 2.77 times 10^{-14}. Additionally bounds on xi_{tau tau} are also obtained, such constraints on xi_{tau tau} still gives enough room for either a strong suppression$ $or strong enhancement on the coupling of any Higgs boson to a pair of tau leptons. Additionally, upper limits on the decay widths of the leptonic decays tau --> e gamma, tau --> mu mu mu and tau --> eee are calculated, finding them to stay far from the reach of near future experiments.