Explaining B → D τν,B → D*τν and B → τν in a two Higgs doublet model of type III

Recently, the BABAR Collaboration reported the first evidence for new physics in B -> D tau nu and B -> D*tau nu. Combining both processes, the significance is 3.4 sigma. This result cannot be explained in a two Higgs doublet model of type II. Furthermore, the CKM fitter Group finds a 2.9 sigma discrepancy between the Standard Model prediction for Brinverted right perpendicularB -> tau nu inverted left perpendicular (using V-ub from a global fit to the unitary triangle) and the measurements of the B factories. Altogether, these measurements are strong indications for physics beyond the Standard Model in B-meson decays to taus. We show that in a two Higgs doublet model of type III it is possible to simultaneously explain B -> D tau nu and B -> D*tau nu using a single free parameter epsilon(u)(32). Also, Brrinverted right perpendicularB -> tau nu inverted left perpendicular can be brought into agreement with experiment using epsilon(u)(31). Furthermore, for Higgs (A(0), H-0, H-+/-) masses around 500 GeV, as preferred by recent CMS results, all bounds from flavor changing neutral current processes are satisfied and B -> D tau nu, B -> D tau nu and B -> tau nu can be explained without a significant degree of fine tuning.