# Measurement of the Electron Energy Spectrum and its Moments in Inclusive $B\to Xe\nu$ Decays

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))%.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00023347
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Submitted on : Friday, November 26, 2004 - 12:21:26 PM
Last modification on : Friday, October 8, 2021 - 10:20:02 AM

### Citation

B. Aubert, R. Barate, D. Boutigny, F. Couderc, J.M. Gaillard, et al.. Measurement of the Electron Energy Spectrum and its Moments in Inclusive $B\to Xe\nu$ Decays. Physical Review D, American Physical Society, 2004, 69, pp.111104. ⟨10.1103/PhysRevD.69.111104⟩. ⟨in2p3-00023347⟩

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