B -> Dlnu Exclusive

etaEW G(1) |Vcb| from B -> Dlnu

In the parameterization of Caprini et al. [Nucl. Phys. B530, 153 (1998)], the decay B -> Dlnu is described by two quantities: etaEW G(1) |Vcb| and rho2. The following average is the result of a two-dimensional global fit of these two parameters to the measurements listed below. The values reported for each experiment have been rescaled to the most recent values of the external parameters (B lifetimes, D meson branching fractions). The fit assumes isospin symmetry.
Experiment etaEW G(1) |Vcb| (rescaled) [10-3] rho2 (rescaled) Correlation (stat/syst/total) Parameters Remarks
ALEPH 36.67 +/- 10.05 +/- 7.33 0.845 +/- 0.879 +/- 0.448 0.98/1.00/0.97 input     parameters Phys.Lett.B395:373-387,1997
CLEO 44.18 +/- 5.70 +/- 3.47 1.270 +/- 0.215 +/- 0.121 0.95/0.47/0.83 input     parameters Phys.Rev.Lett.82:3746,1999
BELLE 41.94 +/- 0.60 +/- 1.21 1.090 +/- 0.036 +/- 0.019 0.95/0.65/0.64 input     parameters Phys.Rev.D93:032006,2016
BABAR global fit 42.23 +/- 0.74 +/- 2.14 1.186 +/- 0.035 +/- 0.062 0.96/0.85/0.86 input     parameters Phys.Rev.D79:012002,2009
BABAR tagged 42.60 +/- 1.71 +/- 1.26 1.200 +/- 0.088 +/- 0.043 0.95/0.68/0.87 input     parameters Phys.Rev.Lett.104:011802,2010
Average 41.57 +/- 0.45 +/- 0.89 1.128 +/- 0.024 +/- 0.023 0.95/0.72/0.75 chi2/dof = 4.7/8 (CL = 0.793) eps 1  pdf 1  eps 2  pdf 2 

Exclusive Branching Fraction: B0 -> D-lnu (using both isospin states)

These branching fractions have been calculated from the values of etaEW G(1) |Vcb| and rho2 obtained by the global two-dimensional fit described above.
Experiment BF (rescaled) [%] Remarks
ALEPH 2.09 +/- 0.15 +/- 0.37 Phys.Lett.B395:373-387,1997
CLEO 2.12 +/- 0.23 +/- 0.29 Phys.Rev.Lett.82:3746,1999
BELLE 2.24 +/- 0.03 +/- 0.11 Phys.Rev.D93:032006,2016
BABAR global fit 2.09 +/- 0.03 +/- 0.13 Phys.Rev.D79:012002,2009
BABAR tagged 2.10 +/- 0.07 +/- 0.08 Phys.Rev.Lett.104:011802,2010
Average 2.13 +/- 0.02 +/- 0.07 chi2/dof = 4.7/8 (CL = 0.793)   eps  pdf

Exclusive Branching Fraction: B0 -> D- lnu

The average BF is the result of a one-dimensional fit to the measurements listed.
Experiment BF (rescaled) [%] Parameters Remarks
ALEPH 2.14 +/- 0.18 +/- 0.36 input     parameters Phys.Lett.B395:373-387,1997
CLEO 2.09 +/- 0.13 +/- 0.16 input     parameters Phys.Rev.Lett.82:3746,1999
BELLE 2.30 +/- 0.04 +/- 0.12 input     parameters Phys.Rev.D93:032006,2016
BABAR 2.08 +/- 0.11 +/- 0.14 input     parameters Phys.Rev.Lett.100:151802,2008
Average 2.20 +/- 0.04 +/- 0.09 chi2/dof = 1.69/3 (CL = 0.639) eps  pdf

Exclusive Branching Fraction: B+ -> D0bar lnu

The average BF is the result of a one-dimensional fit to the measurements listed.
Experiment BF (rescaled) [%] Parameters Remarks
CLEO 2.16 +/- 0.13 +/- 0.17 input     parameters Phys.Rev.Lett.82:3746,1999
BABAR 2.21 +/- 0.09 +/- 0.12 input     parameters Phys.Rev.Lett.100:151802,2008
BELLE 2.48 +/- 0.04 +/- 0.12 input     parameters Phys.Rev.D93:032006,2016
Average 2.33 +/- 0.04 +/- 0.09 chi2/dof = 2.76/2 (CL = 0.252) eps  pdf