Speaker
Mr
Daniel Chao
(Caltech)
Description
We present the measurement of B -> D(*) tau nu decay, which is sensitive at tree
level to New Physics contributions 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 with a 99.8% confidence level for any value of
tan(beta)/mHiggs.
Additional studies of the momentum transfered to the lepton system show that the
result can be accomodated by more general two-Higgs-Doublet models.
| APS member ID | frankp |
|---|
Primary author
Mr
Daniel Chao
(Caltech)
