 DOCUMENT METADATASLAC Publication: SLAC-PUB-14970
SLAC Release Date: April 25, 2012
Searches for Leptonic B Decays at BaBar
Nelson, Silke.
Measurements of the branching fractions of purely leptonic decays of B-mesons translate into constraints in the plane of the charged Higgs mass versus tan beta which are relatively insensitive to the particular theoretical model. Using the full BABAR dataset of 450 million B-decays we search for these decays. No significant signal is found in the decays into electrons or muons and we set upper limits on the branching fractions of the order of a 10{-6} at 90% confidence level. We measure the bran... Show Full Abstract
Measurements of the branching fractions of purely leptonic decays of B-mesons translate into constraints in the plane of the charged Higgs mass versus tan beta which are relatively insensitive to the particular theoretical model. Using the full BABAR dataset of 450 million B-decays we search for these decays. No significant signal is found in the decays into electrons or muons and we set upper limits on the branching fractions of the order of a 10{-6} at 90% confidence level. We measure the branching fraction of B to mu to be (1.7 +/- 0.6) x 10{-4}. Show Partial Abstract
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