Brazilian Journal of Physics
On-line version ISSN 1678-4448
IDARRAGA, J. P.; MARTINEZ, R.; RODRIGUEZ, J-Alexis and POVEDA T., N.. Leptonic decays of the B charged meson and B → Xsγ in the Two Higgs Doublet Model type III. Braz. J. Phys. [online]. 2008, vol.38, n.4, pp. 531-535. ISSN 1678-4448. http://dx.doi.org/10.1590/S0103-97332008000500001.
We consider the Two Higgs Doublet Model (2HDM) of type III which leads to Flavour Changing Neutral Currents (FCNC) at tree level. In the framework of this model we calculate the NLO contribution for b → sγ and the branchings for the meson decays B+ → l+ν. We examine the limits on the new parameters λbb and MH±. We take into account the relationship between λtt and λbb coming from the validness of perturbation theory.
Keywords : B Meson decay; 2HDM type III; Charged Higgs mass.