PS02 Rare Decays
Rare B → baryon decays from CLEO
University of Rochester, Wilson Synchrotron Lab, Ithaca, NY 14853,
Accepted: 25 August 2003
Published online: 11 September 2003
We have searched for baryon-containing radiative penguin decays in 9.7 × 106 events collected at the Υ(4S) with the CLEO detector. We find no evidence for such decays, and set a 90% confidence level upper limit of . Corrections to CLEO’s recent b → s γ measurement due to decays are well within the errors quoted. A search for semileptonic decays of B mesons to inclusive final states in the same data sample found no evidence for such decays and set an upper limit of . These limits suggest that external W emission is not the dominant source of baryon production in B decay.
PACS: 13.20.HeDecays of Bottom Mesons – 13.40.HqElectromagnetic Decays – 13.60.RjBaryon Production
© Società Italiana di Fisica, Springer-Verlag, 2004