Abstract
Using the entire CLEO-c event sample, corresponding to an integrated luminosity of and approximately events, we present a study of the decays , , , and . Via a tagged analysis technique, in which one is fully reconstructed in a hadronic mode, partial rates for semileptonic decays by the other are measured in several bins. We fit these rates using several form factor parametrizations and report the results, including form factor shape parameters and the branching fractions , , , and , where the first uncertainties are statistical and the second are systematic. Taking input from lattice quantum chromodynamics, we also find and , where the third uncertainties are from lattice quantum chromodynamics.
4 More- Received 16 June 2009
DOI:https://doi.org/10.1103/PhysRevD.80.032005
©2009 American Physical Society