Search for Inclusive ${b \to sl}^{+} l^{-}$

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16 March 1998

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 80 (11) , 2289-2293
https://doi.org/10.1103/physrevlett.80.2289

Abstract

We have searched for the effective flavor changing neutral-current decays

b \to {sl}^{+} l^{-}

using an inclusive method. We set upper limits on the branching ratios

B (b \to {se}^{+} e^{-}) < 5.7 \times 10^{- 5}

,

B (b \to s μ^{+} μ^{-}) < 5.8 \times 10^{- 5}

, and

B (b \to {se}^{\pm} μ^{\mp}) < 2.2 \times 10^{- 5}

[at 90% confidence level (C.L.)]. Combing the dielectron and dimuon decay modes we find

B (b \to {sl}^{+} l^{-}) < 4.2 \times 10^{- 5}

(at 90% C.L.).

Keywords

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Version 1, 1997-10-06, ArXiv

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