Speaker
Denis Derkach
(University of Oxford (GB))
Description
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
radiative and electroweak penguin decays are also reported.
Primary author
Denis Derkach
(University of Oxford (GB))
