Search for $B^{+} \to K^{+} \ell^+ \ell^-$ and $B^0 \to$ K*0 $\ell^+$ lepton-

BaBar Collaboration, , Aubert, B., et al, and Britton, D. (2000) Search for $B^{+} \to K^{+} \ell^+ \ell^-$ and $B^0 \to$ K*0 $\ell^+$ lepton-. In: 30th International Conference on High-Energy Physics (ICHEP 2000) Proceedings, Osaka, Japan, 27 Jul-2 Aug 2000,

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Publisher's URL: http://ichep2000.hep.sci.osaka-u.ac.jp/

Abstract

Using a sample of 3.7 x 10^{6} Y(4S) --> B-anti-B events collected with the BABAR detector at the PEP-II storage ring, we search for the electroweak penguin decays B^+ --> K^+e^+e^-, B^+ --> K^+mu^+mu^-, B^0 --> K^{*0)e^+e^-, and B^0 --> K^{*0)mu^+mu^-. We observe no significant signals for these modes and set preliminary 90% C.L. upper limits of B(B^+ --> K^+e^+e^-) < 12.5 x 10^{-6}, B(B^+ --> K^+mu^+mu^-) < 8.3 x 10^{-6}, B(B^0 --> K^{*0)e^+e^-) < 24.1 x 10^{-6}, B(B^0 --> K^{*0)mu^+mu^-) < 24.5 x 10^{-6}.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Britton, Professor David
Authors: BaBar Collaboration, , Aubert, B., et al, , and Britton, D.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:30th International Conference on High-Energy Physics
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