Jan 10 – 14, 2022
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Semileptonic decays at LHCb

Jan 11, 2022, 2:00 PM
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Parallel session talk Flavour Quark and charged lepton flavour


Guy Henri Maurice Wormser (Université Paris-Saclay (FR))


The semileptonic b-hadron decays with a heavy lepton are sensitive to new couplings like those generated by charged Higgses or Leptoquarks. The B-Factories and LHCb have previously performed various measurements of these decays, using different approaches and techniques. A global average of these measurements shows a discrepancy with the Standard Model expectations, which is above 3 standard deviations. A measurement of the combined ratios BF($B\to D \tau \nu$)/BF($B\to D \mu \nu$) and BF($B\to D^* \tau \nu$)/BF($B\to D^*\mu \nu$) using 3/fb collected by LHCb in Run1, is presented.

Primary author

Sebastian Neubert (University of Bonn (DE))

Presentation materials