Speaker
Dr
Marcello Rotondo
(Universita' di Padova)
Description
The decays B -> tau nu, B -> D tau nu, and B -> D* tau nu are sensitive to physics beyond the standard model, in particular to contributions from charged Higgs bosons. The multiple-neutrino final states make studies of these decays particularly challenging and require reconstruction of the full event, which can be performed only at an electron-positron collider. We use the full BABAR data set and much improved full-event-reconstruction techniques to make improved measurements of these branching fractions. We report consistency with the standard model and limits on new-physics models.
Primary authors
BABAR Collaboration
(SLAC)
Dr
Marcello Rotondo
(Universita' di Padova)
