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arXiv · hep-ex/0408139

Moments of the Hadronic Mass Spectrum in Inclusive Semileptonic B Decays at Belle

Belle Collaboration
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Abstract

We report a measurement of the first and second moment of the hadronic mass distribution M_X in B -> X_c l nu decays for lepton threshold momenta ranging from 0.9 to 1.6 GeV/c in the center of mass frame. The measurement uses B Bbar events in which the hadronic decay of one B meson is fully reconstructed and a charged lepton from the decay of the other B meson is identified. These results are obtained from a 140 fb^-1 data sample collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e^+ e^- collider.

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Belle Collaboration. 2004-08-27. Moments of the Hadronic Mass Spectrum in Inclusive Semileptonic B Decays at Belle. https://arxiv.org/abs/hep-ex/0408139

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