B \to X_s \ell^+ \ell^- at Belle

Abstract

Evidence for the inclusive $B\to X_s{\ell }^{+}{\ell }^{-}$ decay has been presented based on 41.8 fb-1 data sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collider. A preliminary result for the branching fraction is B($B\to X_s{\ell }^{+}{\ell }^{-}$) = (7.1 +- 1.6 (stat.) + 1.4 - 1.2(syst.)) \times 10^-6.

arXiv comment5 pages, 3 figures, presented at Flavor Physics and CP Violation (FPCP), 16-18 May 2002, University of Pennsylvania, Philadelphia, USA