Semileptonic Results for the PDG 2003 Update
The changes of this update with respect to the status of winter 2003
are described here.
All analyses are rescaled to a common set of input parameters defined
in common.param.
A spreadsheet with the breakdowns of the errors can be found as xls
and gnumeric.
nada
Exclusive Branching Fraction: B0 -> D*lnu
| Experiment |
BF (rescaled) |
Parameters |
Remarks |
| ALEPH |
5.93 +/- 0.26 +/- 0.39 |
input parameters
| Phys.Lett.B395:373-,1997 |
| OPAL (Excl) |
5.59 +/- 0.19 +/- 0.42 |
input parameters |
Phys.Lett.B482:15-,2000, partial reco. |
| OPAL (Incl) |
6.31 +/- 0.27 +/- 0.60 |
input parameters |
Phys.Lett.B482:15-,2000, exclusive reco. |
| DELPHI (Incl) |
5.15 +/- 0.13 +/- 0.37 |
input parameters
| Phys.Lett.B510:55-,2001, partial reco. |
| BELLE |
4.79 +/- 0.23 +/- 0.42 |
input parameters
| Phys.Lett.B526:247-,2002 |
| CLEO |
6.22 +/- 0.19 +/- 0.39 |
input parameters
| Phys.Rev.Lett.89:081803,2002 |
| Average |
5.53 +/- 0.23 |
(CL = 0.094) |
eps gif |
nada
Exclusive Branching Fraction: B0 -> Dlnu
| Experiment |
BF (rescaled) |
Parameters |
Remarks |
| ALEPH |
2.42 +/- 0.20+/- 0.50 |
input parameters |
Phys.Lett.B395:373-,1997 |
| CLEO |
2.11+/- 0.13+/- 0.17 |
input parameters |
Phys.Rev.Lett.82:3746-,1999 |
| BELLE |
2.20+/- 0.12+/- 0.39 |
input parameters |
Phys.Lett.B526:258-268,2002 |
| Average
| 2.14+/- 0.20
| (CL = 0.840)
| eps gif |
nada
Inclusive Semileptonic Branching Fraction for B+/B0 Admixture: B -> Xlnu
| Experiment |
Rescaled Value |
Input |
Remarks |
| ARGUS |
09.73 +/- 0.50 +/- 0.39 |
input parameters
| Phys. Lett. B318:397, 1993, e-tag |
| CLEO |
10.58 +/- 0.17 +/- 0.42 |
input parameters
| Phys. Rev. Lett. 76:1570, 1996, e-tag |
| BELLE |
10.94 +/- 0.12 +/- 0.50 |
input parameters
| Phys.Lett.B547:181, 2002, e-tag |
| BABAR |
10.89 +/- 0.18 +/- 0.29 |
input parameters
| Phys. Rev. D67:031101, 2003, e-tag |
| Average |
10.70 +/- 0.28 |
(CL = 0.342) |
eps gif |
In hep-ex/0212036, the LEP HF steering group quotes BF(B ->
Xlnu) = 10.65 +/- 0.23 at LEP. This result is model-dependent in
the sense that its error includes a contribution of 0.14 for the
modeling of b->Xl.
Exclusive |Vcb| F(1)
| 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 |
38.9 +/- 1.2 +/- 2.5 |
1.25 +/- 0.14 +/- 0.39 |
input parameters
| Phys.Lett.B482:15-,2000 (partial reco) |
| OPAL |
39.6 +/- 1.6 +/- 1.9
| 1.49 +/- 0.21 +/- 0.26
| input parameters
| Phys.Lett.B482:15-,2000 (excl) |
| DELPHI |
37.4 +/- 1.4 +/- 2.5 |
1.52 +/- 0.14 +/- 0.37 |
input parameters
| Phys.Lett.B510:55-,2001 |
| BELLE |
37.1 +/-1.9 +/- 2.1 |
1.45 +/- 0.16 +/- 0.20 |
input parameters
| Phys.Lett.B526:247-,2002 |
| CLEO |
43.6 +/- 1.3 +/- 1.8 |
1.61 +/- 0.09 +/- 0.21 |
input parameters
| Phys.Rev.Lett.89:081803,2002 |
| Average
| 38.8 +/- 1.1
| 1.49 +/- 0.15
| chi2/dof = 19.9/12 (CL = 0.069)
| Correlation = 0.88
eps gif
|
nada
Exclusive |Vcb|G(1)
| Experiment |
|Vcb| G(1) (rescaled) |
rho2 (rescaled) |
Parameters |
Remarks |
| ALEPH |
40.5+/- 10.0+/- 6.5 |
1.02+/- 0.98+/- 0.37 |
input parameters |
Phys.Lett.B395:373-,1997 |
| CLEO |
44.6+/- 5.8+/- 3.5 |
1.27+/- 0.25+/- 0.14 |
input parameters |
Phys.Rev.Lett.82:3746-,1999 |
| BELLE |
42.4+/- 4.4 +/- 5.3 |
1.12+/- 0.22+/- 0.14 |
input parameters |
Phys.Lett.B526:258-268,2002 |
| Average
| 42.4+/- 3.7
| 1.14+/- 0.16
| chi2/dof = 0.33/6 (CL = 0.999)
| Correlation: 0.93
eps gif
|
Last update: 04/03/03 (UL)
