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We have measured the branching ratio for the inclusive radiative penguin process b ! ss. We nd where the rst error is statistical, the second error is the additive systematic error from uncertainty in yield, and the third error is the multiplicative systematic error from uncertainty in eeciency, which includes model dependence .
We search for the decay B ? ! ? in a sample of over 2 million charged B decays using the CLEO detector. We use the channel in which the tau decays leptonically, and combine this lepton with the missing energy and momentum in the event to form a B candidate. A t to the mass and energy distribution of these B candidates yields ?14 46 signal events. This value… (More)
We have used the CLEO-II detector at the Cornell Electron Storage Ring to study the inclusive production of charmonium mesons in a sample of 2.15 million BB events. We nd inclusive branching fractions of (1.130.040.06)% for B!J==X, (0.340.040.03)% for B! 0 X, and (0.400.060.04)% for B! c1 X. We also nd some evidence for the inclusive production of c2. An… (More)
We have studied semileptonic B meson decays with a P-wave charm meson in the nal state using 3:29 10 6 B B events collected by the CLEO II detector at the Cornell Electron-positron Storage Ring. We nd a value for the exclusive semileptonic product branching fraction: These results indicate that at least 20% of the total B ? semileptonic rate is un-accounted… (More)
We have measured the spectral shape Michel parameters and using lep-tonic decays of the , recorded by the CLEO II detector. Assuming e ? uni-versality, we nd ee = 0:7350:0130:008 and ee = ?0:0150:0610:062, where the rst error is statistical and the second systematic.