Improved measurement of |Vub| with inclusive semileptonic B decays

  • A. Bornheim
  • , E. Lipeles
  • , S. P. Pappas
  • , A. Shapiro
  • , W. M. Sun
  • , A. J. Weinstein
  • , G. Masek
  • , H. P. Paar
  • , R. Mahapatra
  • , R. J. Morrison
  • , R. A. Briere
  • , G. P. Chen
  • , T. Ferguson
  • , G. Tatishvili
  • , H. Vogel
  • , N. E. Adam
  • , J. P. Alexander
  • , C. Bebek
  • , K. Berkelman
  • , F. Blanc
  • V. Boisvert, D. G. Cassel, P. S. Drell, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, L. Hsu, C. D. Jones, J. Kandaswamy, D. L. Kreinick, A. Magerkurth, H. Mahlke-Krüger, T. O. Meyer, N. B. Mistry, E. Nordberg, M. Palmer, J. R. Patterson, D. Peterson, J. Pivarski, D. Riley, A. J. Sadoff, H. Schwarthoff, M. R. Shepherd, J. G. Thayer, D. Urner

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97 Scopus citations

Abstract

The measurement of the Cabibbo-Kobayashi-Maskawa (CKM) parameter made with a sample of 9.7 × 106 BB̄ events collected with the CLEO II detector was discussed. The heavy quark theory was used to combine the observed yield of leptons from semileptonic B decay in the end point interval 2.2-2.6 GeV/c with the CLEO II data on B→ Xsγ. The results showed the measured CKM parameter to be (4.08 ± 0.63) × 10-3.

Original languageEnglish (US)
Article number231803
Pages (from-to)2318031-2318035
Number of pages5
JournalPhysical review letters
Volume88
Issue number23
StatePublished - Jun 10 2002

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