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Measurement of the Electron Energy Spectrum and its Moments in Inclusive B->X e nu Decays

B. Aubert
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Abstract

We report a measurement of the inclusive electron energy spectrum for semileptonic decays of B mesons in a data sample of 52 million Y4S -> BBar decays collected with the BABAR detector at the PEP-II asymmetric-energy B-meson factory at SLAC. We determine the branching fraction, first, second, and third moments of the spectrum for lower cut-offs on the electron energy between 0.6 and 1.5 GeV. We measure the partial branching fraction to be Br(B -> X e nu, E_e>0.6 GeV) = (10.36 +-0.06(stat.) +-0.23(sys))%.

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B. Aubert. 2004-04-29. Measurement of the Electron Energy Spectrum and its Moments in Inclusive B->X e nu Decays. https://doi.org/10.1103/physrevd.69.111104

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