All analyses are rescaled to a common set of input parameters defined in common.param.
Experiment | BF (rescaled) | Parameters | Remarks |
---|---|---|---|
ALEPH | 5.91+/- 0.26+/- 0.37 | input parameters | Phys.Lett.B395:373-,1997 |
OPAL | 5.30+/- 0.19+/- 0.41 | input parameters | Phys.Lett.B482:15-,2000 |
OPAL | 6.07+/- 0.27+/- 0.59 | input parameters | Phys.Lett.B482:15-,2000 |
DELPHI | 4.90+/- 0.13+/- 0.35 | input parameters | Phys.Lett.B510:55-,2001 |
BELLE | 4.65+/- 0.23+/- 0.40 | input parameters | Phys.Lett.B526:247-,2002 |
CLEO | 6.22+/- 0.19+/- 0.39 | input parameters | Phys.Rev.Lett.89:081803,2002 |
DELPHI | 5.60+/- 0.20+/- 0.41 | input parameters | preliminary |
average | 5.40 +/- 0.22 (CL = 0.05) |
Experiment | BF (rescaled) | Parameters | Remarks |
---|---|---|---|
ALEPH | 2.78+/- 0.20+/- 0.46 | input parameters | Phys.Lett.B395:373-,1997 |
CLEO | 2.11+/- 0.13+/- 0.16 | input parameters | Phys.Rev.Lett.82:3746-,1999 |
BELLE | 2.14+/- 0.12+/- 0.27 | input parameters | Phys.Lett.B526:258-268,2002 |
average | 2.17+/- 0.17 (CL = 0.44) |
Experiment | Original Value | Rescaled Value | Input | Remarks |
---|---|---|---|---|
CLEO and ARGUS | 10.38+/- 0.08+/- 0.31 | 10.38+/- 0.08+/- 0.32 | input | |
BABAR | 10.87+/- 0.18+/- 0.3 | 10.87+/- 0.18+/- 0.35 | input | |
BELLE | 10.90+/- 0.12+/- 0.49 | 10.90+/- 0.12+/- 0.52 | input | Error under investigation |
average | 10.63+/- 0.19+/- 0.16 | parameters | Gamma(B->Xclnu) = 0.431 (1+/- 0.019+/- 0.016) 10-10 MeV | |
LEP HFEW fit | 10.63+/- 0.25 | parameters | Gamma(B->Xclnu) = 0.438 (1+/- 0.024+/- 0.015) 10-10 MeV |
Experiment | |Vcb| F(1) (rescaled) | rho2 (rescaled) | Parameters | Remarks |
---|---|---|---|---|
ALEPH | 34.0+/- 2.1+/- 1.6 | 0.75+/- 0.25+/- 0.37 | input parameters | Phys.Lett.B395:373-,1997 |
OPAL | 38.3+/- 1.2+/- 2.5 | 1.23+/- 0.14+/- 0.39 | input parameters | Phys.Lett.B482:15-,2000 (partial reco) |
OPAL | 38.4+/- 1.6+/- 1.8 | 1.45+/- 0.21+/- 0.26 | input parameters | Phys.Lett.B482:15-,2000 (excl) |
DELPHI | 36.5+/- 1.4+/- 2.5 | 1.47+/- 0.14+/- 0.37 | input parameters | Phys.Lett.B510:55-,2001 |
BELLE | 36.0+/-1.9+/-1.9 | 1.45+/- 0.16+/- 0.20 | input parameters | Phys.Lett.B526:247-,2002 |
CLEO | 43.4+/- 1.3+/- 1.8 | 1.61+/- 0.09+/- 0.21 | input parameters | Phys.Rev.Lett.89:081803,2002 |
DELPHI | 38.2+/- 1.8+/- 2.0 | 1.32+/- 0.15+/- 0.32 | input parameters | preliminary |
average | 38.1+/- 1.0 (CL = 0.01) | 1.59+/- 0.14(CL = 0.01) | |Vcb| F(1): plot; correlation: plot |
With F(1) = 0.91 +/- 0.04, this yields |Vcb| = (41.9 +/-1.1exp +/-1.8theo)10-3
Experiment | |Vcb| G(1) (rescaled) | rho2 (rescaled) | Parameters | Remarks |
---|---|---|---|---|
ALEPH | 39.4+/- 10.0+/- 6.4 | 0.99+/- 0.98+/- 0.37 | input parameters | Phys.Lett.B395:373-,1997 |
CLEO | 44.8+/- 5.8+/- 3.5 | 1.27+/- 0.25+/- 0.14 | input parameters | Phys.Rev.Lett.82:3746-,1999 |
BELLE | 41.2+/- 4.4 +/- 5.1 | 1.12+/- 0.22+/- 0.14 | input parameters | Phys.Lett.B526:258-268,2002 |
average | 41.9+/- 3.7 (CL = 0.99) | 1.15+/- 0.16 (CL = 0.99) | plot |
With G(1)=1.0+/-0.07 (PDG), this gives |Vcb| = (41.9 +/-3.7exp +/-2.9theo) 10-3
Vcb = 40.7 (1 +/-0.010exp +/-0.012lambda_1, Lambda_bar +/-0.0201/m**3,QCD scale ) 10-3
where we use |Vcb| = |Vcb|CLEO SQRT(GammaSL/GammaSL, CLEO), GammaSL, CLEO=0.427