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Measurement of the electron energy spectrum and its moments in inclusive BXeν decays

B. Aubert et al. (BABAR Collaboration)
Phys. Rev. D 69, 111104(R) – Published 29 June 2004
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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 Υ(4S)BB¯ 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 cutoffs on the electron energy between 0.6 and 1.5 GeV. We measure the partial branching fraction to be B(BXeν,Ee>0.6GeV)=[10.36±0.06(stat.)±0.23(sys.)]%.

  • Received 23 January 2004

DOI:https://doi.org/10.1103/PhysRevD.69.111104

©2004 American Physical Society

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Vol. 69, Iss. 11 — 1 June 2004

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