Speaker
Mr
Manuel FRANCO SEVILLA
(SLAC)
Description
We report a measurement of the branching fractions of B -> D** l nu decays
based on 417 fb-1 of data collected at the Upsilon (4S) resonance with
the BABAR detector at the PEP-II e+e- storage rings. Events are
selected by fully reconstructing one of the B mesons in a hadronic decay
mode. A fit to the invariant mass differences m(D(*)pi) - m(D(*)) is
performed to extract the signal yields of the different D** states. We
observe the B -> D** l nu decay modes corresponding to the four D** states
predicted by Heavy Quark Symmetry with a significance greater than five
standard deviations including systematic uncertainties.
Authors
Mr
Manuel FRANCO SEVILLA
(SLAC)
Manuel Franco Sevilla
(SLAC National Accelerator Laboratory-Unknown-Unknown)
Manuel Franco Sevilla
(SLAC)
