Determination of |V_ub| (DGE) for the m_X analyses

The same m_b value for the fit over all the independent analyses is used

Vub (DGE) for the mX analyses
Experiment	Value [10-3]	Parameters	References	Remarks
BELLE m_{X}	4.29 +/- 0.28 +/- 0.28	input	Phys.Rev.Lett.95:241801,2005 (hep-ex/0505088)	mX, BRECO tag; other methods (mX-q2 and P not used)
BABAR m_{X}	4.56 +/- 0.22 +/- 0.32	input	[arXiv:0708.3702v1]	mX-q2, BRECO tag
Average +/- exp +/- (mb,theory)	4.40 +/- 0.27 +/- 0.28	chi2/dof = 0.47/1 (CL = 0.49)	Plots: eps pdf gif	mb from PDG07 average

The full breakdown of the uncertainties on the average |Vub| above is (all errors quoted in percent):

+-3.2_stat +-2.1_exp +-0.5_{b2c model} +-1.8_{b2u model} +-0.8_{alpha_s R_CUT} +-4.1_{mb R_CUT} +-3.0 _{TOTAL SL WIDTH} +-1.5 _WA +-3.5_{DGE theory}

where the errors correspond to the statistics (stat), the experimental systematics (exp), the modeling of b -> c l nu and b -> u l nu decays (b2c model and b2u model, respectively), the effect of the alpha_s uncertainty on R_CUT (alpha_s R_CUT), the effect of the uncertainty on m_b on the prediction of the event fraction (mb R_CUT), the uncertainty on the total semileptonic B width (TOTAL SL WIDTH), the Weak Annihilation (WA) and from the change
and the variation of the scale of the matching scheme (DGE theory).