CLNS 97/1514 CLEO 97-21 Search for Inclusive b → sl + l −
semanticscholar(2008)
Abstract
We have searched for the effective FCNC decays b → sl+l− using an inclusive method. We set upper limits on the branching ratios B(b → se+e−) < 5.7 × 10−5, B(b → sμ+μ−) < 5.8 × 10−5, and B(b → seμ) < 2.2 × 10−5 (at 90 % C.L.). Combining the di-electron and di-muon decay modes we find: B(b → sl+l−) < 4.2 × 10−5 (at 90 % C.L.).
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