SEARCH FOR THE RARE DECAY OF A B MESON TO A K MESON AND TWO NEUTRINOS
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We search for the exclusive decays B -> (K+,KS,K*+,K0)nu nubar in a sample of 9.7 million charged and neutral B meson decays recorded by the CLEO detector at the Y(4S)resonance. The technique was one of full event reconstruction where after electing a signal B candidate the remainder of the event is required to be consistent with a hadronic B -> D()(npi) decay. No signals were observed so 90% confidence level upper limits were set at: B(B+ -> K+ nu nubar) < 6.1 ? 10?4, B(B0 -> KS nu nubar) < 2.3 ? 10?3, B(B+ -> K*+ nu nubar) < 2.0 ? 10?3, and B(B0 -> K*0 nu nubar) < 2.6 ? 10?3.
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James Alexander: chair,
Matthias Neubert,
Lawrence Gibbons
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2004-03-09T14:50:48Z
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Particle Physics; Rare B Decays; Flavor Changing Neutral Currents
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Government Document
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dissertation or thesis