Search for B → τv and B → Kvv̄
Physical Review Letters 86:14 (2001) 2950-2954
Abstract:
An analysis of 9.66 × 106 charged B meson decays which results in a conservative upper limit on the branching fraction B(B → τν) < 8.4 × 10-4. The analysis was slightly modified to establish B(B± → K± νν̄) < 2.4 × 10-4. The method used is optimized for conditions available at Y(4S) experiments, and some application of the method to other rare decay modes with large missing energy was aniticipated.First observation of the decays B0 → D*- p̄π+ and B0 → D*-pn̄
Physical Review Letters 86:13 (2001) 2732-2736
Abstract:
Decay modes of the B0 of the type B → DNN̄X were observed. Measurements imply that DNN̄X final states may contribute substantially to the total observed B → barvon rate. Branching fractions were accurately measured.Study of B→ψ(2S)K and B→ψ(2S)K*(892) decays
Physical Review D American Physical Society (APS) 63:3 (2001) 031103
First observation of the sigma(*+)(c) baryon and a new measurement of the sigma(*+)(c) mass.
Physical review letters 86:7 (2001) 1167-1170
Abstract:
Using data recorded with the CLEO II and CLEO II.V detector configurations at the Cornell Electron Storage Rings, we report the first observation and mass measurement of the Sigma(*+)(c) charmed baryon, and an updated measurement of the mass of the Sigma(+)(c) baryon. We find M(Sigma(*+)(c))-M(Lambda(+)(c)) = (231.0+/-1.1+/-2.0) MeV, and M(Sigma(+)(c))-M(Lambda(+)(c)) = (166.4+/-0.2+/-0.3) MeV, where the errors are statistical and systematic, respectively.Study ofχ c 1 andχ c 2 meson production inBmeson decays
Physical Review D American Physical Society (APS) 63:3 (2001) 031102