We report a measurement of the first four moments of the hadronic mass distribution in B̅ →Xcl-ν̅ decays. The measurements are based on 89 million Υ(4S)→BB̅ events where the hadronic decay of one of the B mesons is fully reconstructed and a charged lepton from the decay of the other B meson is identified. The moments are presented for minimum lepton momenta ranging from 0.9 to 1.6 GeV in the B rest frame. It is expected that such measurements will lead to improved determinations of |Vcb| and |Vub|.
Measurements of moments of the hadronic mass distribution in semileptonic B decays
MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;VOCI, CESARE;SIMI, GABRIELE;
2004
Abstract
We report a measurement of the first four moments of the hadronic mass distribution in B̅ →Xcl-ν̅ decays. The measurements are based on 89 million Υ(4S)→BB̅ events where the hadronic decay of one of the B mesons is fully reconstructed and a charged lepton from the decay of the other B meson is identified. The moments are presented for minimum lepton momenta ranging from 0.9 to 1.6 GeV in the B rest frame. It is expected that such measurements will lead to improved determinations of |Vcb| and |Vub|.File in questo prodotto:
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