Eli Ben Haim (Centre National de la Recherche Scientifique (FR))
We present the measurement of the B -> D(*) tau nu decay, which is sensitive at tree level to New Physics in the form of a charged Higgs Boson. The measured branching fraction is 3.4 sigma larger than the SM predictions, and excludes the 2HDM of type 2 at 99.88% confidence for all tan(beta)/mHiggs values. Additional studies of the momentum transferred to the lepton system show that the result can be accommodated by more general two-Higgs-Doublet models. Searches for rare decays sensitive to New Physics, as B -> K(*) nu anti-nu, are also reported.
Fabio Anulli (Universita e INFN, Roma I (IT))