Vub exclusive (CKM workshop) - PowerPoint PPT Presentation

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Vub exclusive (CKM workshop)

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Title: Measurement of the B0B0 Oscillation Frequency with Inclusive Dilepton Events Author: daniele Last modified by: daniele Created Date: 4/9/2002 10:34:33 AM – PowerPoint PPT presentation

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Title: Vub exclusive (CKM workshop)


1
Vub exclusive (CKM workshop)
  • Many new measurements,
  • agreement in general
  • CLEO performed new
  • analysis in bins of q2
  • reducing FF dependence
  • Mean of exclusive analyses
  • starts to be systematically
  • below the inclusive one
  • Mentioned the recoil of fully
  • B tags to minimize the
  • systematic unc.
  • Problems in averaging how
  • can we quote and weight FF
  • dependence?

2
Vub exclusive (CKM workshop)
We can reject theoretical models using the q2
distribution
3
Vub inclusive (CKM workshop)
  • 4 new measurements based
  • on Mx from B factories
  • discussion about performing
  • averages
  • established common strategy
  • between BaBar and Belle
  • (both for experimental and
  • theoretical uncertainties)
  • not much time for discussion
  • with theorists (close to zero
  • actually)

4
Vub inclusive (CKM workshop)
Recoil of B? D l n in Belle
5
Vub inclusive (CKM workshop)
  • Annealing method in Belle
  • divide the event in two Bs, many combinations
  • take the one with the highest prob. to be signal
    (using a PDF made by a combination of
    discriminating variables)

q2 gt 7 GeV2
MX lt 1.5 GeV
q2 GeV2
MX GeV
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