Measurement of the direct photon spectrum in [Formula presented] decays
Physical Review D - Particles, Fields, Gravitation and Cosmology 55:9 (1997) 5273-5281
Abstract:
Using data taken with the CLEO II detector at the Cornell Electron Storage Ring, we have determined the ratio of branching fractions: [Formula presented]. From this ratio, we have determined the QCD scale parameter [Formula presented] (defined in the modified minimal subtraction scheme) to be [Formula presented] MeV, from which we determine a value for the strong coupling constant [Formula presented], or [Formula presented]. © 1997 The American Physical Society.New upper limit on the decay [Formula presented]
Physical Review D - Particles, Fields, Gravitation and Cosmology 56:9 (1997) 5359-5365
Abstract:
We have searched for the rare decay of the [Formula presented] meson [Formula presented] using the CLEO II detector. The [Formula presented]’s were produced in [Formula presented] collisions with 10 GeV center-of-mass energy at the Cornell Electron Storage Ring (CESR). We find with [Formula presented] confidence the upper limit on the branching fraction [Formula presented]. The application of conventional elementary particle theory to this decay predicts a branching fraction of about [Formula presented]. © 1997 The American Physical Society.Observation of the Decay D+s →ωΠ
Physical Review Letters 79:8 (1997) 1436-1440
Abstract:
Using e+e- annihilation data collected by the CLEO II detector at CESR we have observed the decay D+s→ωΠ. This final state may be produced through the annihilation decay of the D+s or through final state interactions. We find a branching ratio of γD+s→ωΠ/D+s→ηΠ=0.16α0.04±0.03 where the first error is statistical and the second is systematic. © 1998 The American Physical Society.Search for neutrinoless [Formula presented] decays: [Formula presented] and [Formula presented]
Physical Review D - Particles, Fields, Gravitation and Cosmology 55:7 (1997) R3919-R3923
Abstract:
A search for the lepton-family-number-violating decays [Formula presented] and [Formula presented] has been performed using CLEO II data. No evidence of a signal has been found and the corresponding upper limits are [Formula presented] and [Formula presented] at 90% C.L. © 1997 The American Physical Society.Search for neutrinoless τ decays involving π0 or η mensons
Physical Review Letters 79:7 (1997) 1221-1224