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

Authors
Type
Published Article
Publication Date
Dec 11, 2002
Submission Date
Aug 12, 2002
Identifiers
DOI: 10.1103/PhysRevD.67.075011
arXiv ID: hep-ph/0208117
Source
arXiv
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. Specifically, based on the $g-2$muon factor and the decay width of$\mu \to e\gamma$,the following quite general bounds are obtained:$7.62\times 10^{-4}\lesssim \xi_{\mu \tau}^{2}\lesssim 4.44\times 10^{-2},$ $\xi_{e\tau}^{2}\lesssim 2.77\times 10^{-14}$. Additionally, based on the processes $\tau \to \mu \gamma$, and $\tau \to \mu \mu \mu$, bounds on $\xi_{\tau \tau}$and $\xi_{\mu \mu}$are also gotten, such constraints on these parametersstill give enough room for either a strong suppressionor strong enhancement on the coupling of any Higgs boson to a pair of tau leptons or a pair of muons\textbf{.} Furthermore, upper limits on the decay widths of the leptonic decays $\tau \to e\gamma,$and $\tau \to eee$are calculated, finding them to stay far from the reach of near future experiments.