The average BF is the result of a one-dimensional fit to the
measurements listed.
| Experiment | BF (rescaled) [%] | Parameters | Remarks |
|---|---|---|---|
| ALEPH | 2.32 +/- 0.18 +/- 0.36 | input parameters | Phys.Lett.B395:373-387,1997 |
| CLEO | 2.15 +/- 0.13 +/- 0.16 | input parameters | Phys.Rev.Lett.82:3746,1999 |
| BABAR | 2.19 +/- 0.11 +/- 0.14 | input parameters | Phys.Rev.Lett.104:011802,2010 |
| BELLE | 2.43 +/- 0.04 +/- 0.12 | input parameters | Phys.Rev.D93:032006,2016 |
| Average | 2.31 +/- 0.04 +/- 0.09 | chi2/dof = 2.20/3 (CL = 0.531) | eps pdf |
The average BF is the result of a one-dimensional fit to the
measurements listed.
| Experiment | BF (rescaled) [%] | Parameters | Remarks |
|---|---|---|---|
| CLEO | 2.19 +/- 0.13 +/- 0.17 | input parameters | Phys.Rev.Lett.82:3746,1999 |
| BABAR | 2.19 +/- 0.08 +/- 0.13 | input parameters | Phys.Rev.Lett.104:011802,2010 |
| BELLE | 2.53 +/- 0.04 +/- 0.12 | input parameters | Phys.Rev.D93:032006,2016 |
| Average | 2.35 +/- 0.03 +/- 0.09 | chi2/dof = 3.78/2 (CL = 0.151) | eps pdf |
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 | 38.75 +/- 9.51 +/- 6.93 | 0.955 +/- 0.834 +/- 0.425 | 0.98/0.98/0.97 | input parameters | Phys.Lett.B395:373-387,1997 |
| CLEO | 44.97 +/- 5.70 +/- 3.47 | 1.270 +/- 0.215 +/- 0.121 | 0.95/0.44/0.82 | input parameters | Phys.Rev.Lett.82:3746,1999 |
| BELLE | 42.22 +/- 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 | 43.84 +/- 0.76 +/- 2.19 | 1.215 +/- 0.035 +/- 0.062 | 0.96/0.86/0.86 | input parameters | Phys.Rev.D79:012002,2009 |
| BABAR tagged | 42.76 +/- 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 | 42.00 +/- 0.45 +/- 0.89 | 1.131 +/- 0.024 +/- 0.023 | 0.95/0.72/0.75 | chi2/dof = 5.0/8 (CL = 0.761) | eps 1 pdf 1 eps 2 pdf 2 |