Andreas Warburton
McGill University


Measurement of the CKM Matrix Element |Vub| using the CLEO Detector


We report on studies of exclusive semileptonic b -> u l nu decays in 9.7 
million B\bar B events accumulated with the CLEO detector in symmetric 
e^+e^- collisions produced in the Cornell Electron Storage Ring (CESR).  
Various experimental techniques, including the inference of neutrino 
candidates using the hermeticity of the CLEO detector, are used in 
conjunction with theoretical calculations to provide estimates of the CKM 
matrix element |V_{ub}|.