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We report 3 patients who underwent total hip arthroplasty (THA) using large diameter metal-on-metal bearing. These patients initially presented with pain but went on to develop dislocation of the THA while awaiting investigations. Any pain following metal-on-metal bearing THA should be taken seriously and should trigger investigations to identify a metal… (More)
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 .
Using data collected in the region of the Υ(4S) resonance with the CLEO II detector operating at the Cornell Electron Storage Ring (CESR), we present the first observation of B mesons decaying into the charmed strange baryons Ξc and Ξ + c . We find 79 ± 27 Ξ 0 c and 125 ± 28 Ξ + c candidates from B decays, leading to product branching fractions of B(B →… (More)
The decays Υ(4S) → BB, followed by B → Dπ and D → Dπ, permit reconstruction of all kinematic quantities that describe the sequence without reconstruction of the D, with reasonably low backgrounds. Using an integrated e+e− luminosity of 3.1 fb accumulated at the Υ(4S) by the CLEO-II detector, we report measurements of B(B 0 →D∗+ π) = (2.81 ± 0.11 ± 0.21 ±… (More)
Using the CLEO II detector, we have measured the di erential cross sections for exclusive two-photon production of light pseudoscalar mesons 0, , and . From our measurements we have obtained the form factors associated with the electromagnetic transitions ! meson. We have measured these form factors in the momentum transfer ranges from 1.5 to 9, 20, and 30… (More)
We report results from a direct search for ? ! h ? (h ? = ? or K ?) using 3.1 f b ?1 of data collected with the CLEO II detector. We nd model-dependent upper limits on the branching fractions in the range: B(? !
We have studied the leptonic decay of the Υ(1S) resonance into tau pairs using the CLEO II detector. A clean sample of tau pair events is identified via events containing two charged particles where exactly one of the particles is an identified electron. We find B(Υ(1S) → ττ) = ( 2.61 ± 0.12 +0.09 −0.13 )