Measurement of the Differential $q^2$ Spectrum and Forward-Backward Asymmetry for $B \to K^{(*)} \ell^+ \ell^-$

Details Measurement of the Differential $q^2$ Spectrum and Forward-Backward Asymmetry for $B \to K^{(*)} \ell^+ \ell^-$ Measurement of the Differential $q^2$ Spectrum and Forward-Backward Asymmetry for $B \to K^{(*)} \ell^+ \ell^-$

2004-10-04

arxiv.org/abs/hep-ex/0410006v2

Physics

High Energy Physics

High Energy Physics - Experiment

BELLE-CONF-0415, submitted to FPCP04, Daegu, Korea and ICHEP04, Beijing, China

Scientific paper

We report measurements of the differential $q^2$ spectrum and the
forward-backward asymmetry for $B \to K^{(*)} \ell^+\ell^-$, where $\ell$
represents an electron or a muon, with a data sample of 253 fb$^{-1}$
accumulated on the $\Upsilon(4S)$ resonance with the Belle detector at KEKB. We
also present measurements of the branching fractions and their ratios.

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