A second scenario is shown in which the fit is performed with a limited set of experiments,
which has a higher probability of the chi2.
The table below and the plots are
based on the global fit values of R1 =1.42±0.06 and R2=0.826±0.067.
The
values reported for each experiment have been rescaled to R1
and R2 obtained from the fit. The errors contain both the
common and the experiment dependent systematics uncertainties. ALEPH
and CLEO
experiments has been excluded from this average.
Experiment | |Vcb| F(1) (rescaled) [10-3] | r2 (rescaled) | Correlation (stat/syst/total) | Parameters | Remarks |
---|---|---|---|---|---|
OPAL (excl) | 37.9 +/- 1.6 +/- 1.5 | 1.27 +/-0.21 +/-0.15 | 0.95/0.42/0.61 | input parameters | Phys.Lett.B482:15-,2000 |
OPAL (partial reco) | 37.6+/- 1.2 +/- 2.4 | 1.18+/-0.14+/-0.30 | 0.77/0.70/0.71 | input parameters | Phys.Lett.B482:15-,2000 |
DELPHI (partial reco) | 36.0 +/- 1.4 +/- 2.3 | 1.22+/-0.14+/-0.27 | 0.94/0.77/0.79 | input parameters | Phys.Lett.B510:55-,2001 |
BELLE (excl) | 34.3 +/- 1.9 +/- 1.7 | 1.18 +/-0.16+/-0.11 | 0.91/0.68/0.78 | input parameters | Phys.Lett.B526:247-,2002 |
DELPHI (excl) | 36.7 +/- 1.8 +/- 1.9 | 1.06+/-0.15+/-0.16 | 0.89/0.50/0.58 | input parameters | Eur.Phys.J.C33:213,2004 |
BABAR (excl) | 34.3 +/- 0.3 +/- 1.1 | 1.18+/-0.05+/-0.03 | 0.27 | input parameters | Preliminary hep-ex/0607076 & Phys.Rev.D74:092004,2006 (supersedes Phys.Rev.D71:051502,2004) |
Average | 35.28 +/- 0.61 | 1.20 +/- 0.05 | 0.116 |
chi2/dof = 11.1/10 (CL = 0.35) | eps 1 pdf 1 gif 1 eps 2 pdf 2 gif 2 |