Updates of Semileptonic Results for the PDG 2005 -- PRELIMINARY

The changes of this update with respect to the status of PDG 2004 are described here.

All analyses are rescaled to a common set of input parameters defined in common.param. nada

Exclusive Branching Fraction: B0 -> Dlnu

This is a one-dimensional fit for the average branching fraction.
Experiment BF (rescaled) [%] Parameters Remarks
ALEPH 2.39 +/- 0.20+/- 0.52 input     parameters Phys.Lett.B395:373-,1997
CLEO 2.10+/- 0.13+/- 0.18 input     parameters Phys.Rev.Lett.82:3746-,1999
BELLE 2.15+/- 0.12+/- 0.39 input     parameters Phys.Lett.B526:258-268,2002
Average 2.12+/- 0.20 chi2/dof = 0.3/2 (CL = 0.870) eps gif
nada

Exclusive Branching Fraction: B0 -> D*lnu

This is a one-dimensional fit for the average branching fraction.
Experiment BF (rescaled) [%] Parameters Remarks
ALEPH 5.77 +/- 0.26 +/- 0.36 input     parameters Phys.Lett.B395:373-,1997
OPAL (excl) 5.50 +/- 0.19 +/- 0.39 input     parameters Phys.Lett.B482:15-,2000, exclusive reco.
OPAL (partial reco) 6.19 +/- 0.27 +/- 0.58 input     parameters Phys.Lett.B482:15-,2000, partial reco.
DELPHI (partial reco) 5.04 +/- 0.13 +/- 0.36 input     parameters Phys.Lett.B510:55-,2001, partial reco.
BELLE 4.68 +/- 0.23 +/- 0.42 input     parameters Phys.Lett.B526:247-,2002
CLEO 6.28 +/- 0.19 +/- 0.39 input     parameters Phys.Rev.Lett.89:081803,2002
BABAR 4.82 +/- 0.07 +/- 0.34 input     parameters Phys.Rev.D71:051502,2004
DELPHI (exclu) 5.80 +/- 0.22 +/- 0.46 input     parameters Eur.Phys.J.C33:213,2004
Average 5.34 +/- 0.20 chi2/dof = 15.6/7 (CL = 0.029) eps gif
nada

Inclusive Semileptonic Branching Fraction for B+/B0 Admixture: B -> Xlnu

This is a one-dimensional fit for the average branching fraction.
Experiment Rescaled Value [%] Input Remarks
ARGUS (e tag) 09.77 +/- 0.50 +/- 0.39 input     parameters Phys.Lett.B318:397-, 1993
CLEO (e tag hqe) 10.95 +/- 0.09 +/- 0.24 input     parameters Phys.Rev.D70:032003,2004
BELLE (l tag) 10.98 +/- 0.12 +/- 0.50 input     parameters Phys.Lett.B547:181-, 2002
BABAR (e tag hqe) 10.87 +/- 0.06 +/- 0.16 input     parameters Phys.Rev.D69:111104, 2004
Average 10.87 +/- 0.17 chi2/dof = 3.5/3 (CL = 0.323) eps gif

Exclusive |Vcb| F(1)

This table and the plots in the last row document the two-dimensional simultaneous fit to |Vcb|*F(1) and rho2. Note: The fit is two-dimensional and systematics limited, no confidence level is given at the moment. p
Experiment |Vcb| F(1) (rescaled) [10-3] rho2 (rescaled) Correlation (stat/syst/total) Parameters Remarks
ALEPH 33.7 +/- 2.1 +/- 1.6 0.75 +/- 0.25 +/- 0.37 0.94/0.60/0.72 input     parameters Phys.Lett.B395:373-,1997
OPAL (partial reco) 38.5 +/- 1.2 +/- 2.4 1.25 +/- 0.14 +/- 0.39 0.77/0.70/0.71 input     parameters Phys.Lett.B482:15-,2000
OPAL (excl) 39.3 +/- 1.6 +/- 2.3 1.49 +/- 0.21 +/- 0.27 0.95/0.42/0.61 input     parameters Phys.Lett.B482:15-,2000
DELPHI (partial reco) 36.9 +/- 1.4 +/- 2.5 1.50 +/- 0.14 +/- 0.37 0.94/0.77/0.79 input     parameters Phys.Lett.B510:55-,2001
BELLE 36.2 +/-1.9 +/- 1.9 1.45 +/- 0.16 +/- 0.20 0.91/0.68/0.78 input     parameters Phys.Lett.B526:247-,2002
CLEO 43.8 +/- 1.3 +/- 1.8 1.61 +/- 0.09 +/- 0.21 0.87/0.62/0.67 input     parameters Phys.Rev.Lett.89:081803,2002
BABAR 35.2 +/- 0.3 +/- 1.6 1.29 +/- 0.03 +/- 0.27 0.56/0.73/0.72 input     parameters Phys.Rev.D71:051502,2004
DELPHI (exclu) 38.8 +/- 1.8 +/- 2.3 1.32 +/- 0.15 +/- 0.33 0.89/0.50/0.58 input     parameters Eur.Phys.J.C33:213,2004
Average 37.6 +/- 0.9 1.56 +/- 0.14 0.73/0.58/0.59 chi2/dof = 30.4/14 eps 1  gif 1  eps 2  gif 2 
nada

Exclusive |Vcb|G(1)

This table and the plots in the last row document the two-dimensional simultaneous fit to |Vcb|*G(1) and rho2. Note: The fit is two-dimensional, no confidence level is given at the moment.
Experiment |Vcb| G(1) (rescaled) [10-3] rho2 (rescaled) Correlation (stat/syst/total) Parameters Remarks
ALEPH 39.9+/- 10.0+/- 6.5 1.01+/- 0.98+/- 0.38 0.98/0.99/0.96 input     parameters Phys.Lett.B395:373-,1997
CLEO 45.1+/- 5.8+/- 3.5 1.27+/- 0.25+/- 0.14 0.95/0.98/0.96 input     parameters Phys.Rev.Lett.82:3746-,1999
BELLE 41.2+/- 4.4 +/- 5.2 1.12+/- 0.22+/- 0.14 0.96/0.96/0.92 input     parameters Phys.Lett.B526:258-268,2002
Average 42.2+/- 3.7 1.15+/- 0.16 0.93/0.92/0.91 chi2/dof = 0.3/4 eps 1  gif 1  eps 2  gif 2 
Last update: 2005/04/11 (RVK)