Abstract
We present a study of decays into semileptonic final states containing charged and neutral and . The analysis is based on a data sample of collected at the resonance with the BABAR detector at the PEP-II asymmetric-energy factory at SLAC. With a simultaneous fit to four different decay chains, the semileptonic branching fractions are extracted from measurements of the mass difference distributions. Product branching fractions are determined to be , , and . In addition we measure the branching ratio .
- Received 5 August 2008
DOI:https://doi.org/10.1103/PhysRevLett.103.051803
©2009 American Physical Society