Measurement and interpretation of moments in inclusive semileptonic decays B̄→Xc -ν̄

Aubert B; Karyotakis Y; Lees JP; Poireau V; Prencipe E; Prudent X; Tisserand V; Tico JG; Grauges E; Martinelli M; Palano A; Pappagallo M; Eigen G; Stugu B; Sun L; Battaglia M; Brown DN; Kerth LT; Kolomensky YG; Lynch G; Osipenkov IL; Tackmann K; Tanabe T; Hawkes CM; Soni N; Watson AT; Koch H; Schroeder T; Asgeirsson DJ; Fulsom BG; Hearty C; Mattison TS; McKenna JA; Barrett M; Khan A; Randle-Conde A; Blinov VE; Bukin AD; Buzykaev AR; Druzhinin VP; Golubev VB; Onuchin AP; Serednyakov SI; Skovpen YI; Solodov EP; Todyshev KY; Bondioli M; Curry S; Eschrich I; Kirkby D; Lankford AJ; Lund P; Mandelkern M; Martin EC; Stoker DP; Abachi S; Buchanan C; Atmacan H; Gary JW; Liu F; Long O; Vitug GM; Yasin Z; Zhang L; Sharma V; Campagnari C; Hong TM; Kovalskyi D; Mazur MA; Richman JD; Beck TW; Eisner AM; Heusch CA; Kroseberg J; Lockman WS; Martinez AJ; Schalk T; Schumm BA; Seiden A; Wang L; Winstrom LO; Cheng CH; Doll DA; Echenard B; Fang F; Hitlin DG; Narsky I; Piatenko T; Porter FC; Andreassen R; Mancinelli G; 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Gamba D; Pelliccioni M; Bomben M; Bosisio L; Cartaro C; Della Ricca G; Lanceri L; Vitale L; Azzolini V; Lopez-March N; Martinez-Vidal F; Milanes DA; Oyanguren A; Albert J; Banerjee S; Bhuyan B; Choi HHF; Hamano K; King GJ; Kowalewski R; Lewczuk MJ; Nugent IM; Roney JM; Sobie RJ; Gershon TJ; Harrison PF; Ilic J; Latham TE; Mohanty GB; Puccio EMT; Band HR; Chen X; Dasu S; Flood KT; Pan Y; Prepost R; Vuosalo CO; Wu SL

doi:10.1103/PhysRevD.81.032003

We present results for the moments of observed spectra in inclusive semileptonic B-meson decays to charm hadrons B̄→Xc -ν̄. Moments of the hadronic-mass and the combined mass-and-energy spectra for different minimum electron or muon momenta between 0.8 and 1.9GeV/c are obtained from a sample of 232×106 Υ(4S)→BB̄ events, collected with the BABAR detector at the PEP-II asymmetric-energy B-meson factory at SLAC. We also present a reevaluation of the moments of electron-energy spectra and partial decay fractions B(B̄→Xce-ν̄) for minimum electron momenta between 0.6 and 1.5GeV/c based on a sample of 51×106 Υ(4S)→BB̄ events. The measurements are used for the extraction of the total decay fraction, the Cabibbo-Kobayashi-Maskawa (CKM) matrix element |Vcb|, the quark masses mb and mc, and four heavy-quark QCD parameters in the framework of a Heavy-Quark Expansion (HQE). We find B(B̄→Xc -ν̄)= (10.64±0.17±0.06)% and |Vcb|=(42.05±0.45±0.70) ×10-3.

Aubert, B., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., Prudent, X., et al. (2010). Measurement and interpretation of moments in inclusive semileptonic decays B̄→Xc -ν̄. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 81(3) [10.1103/PhysRevD.81.032003].