! ! Combine all Ac measurements (Final Summer 04) ! ! Lepton: ! 93-95: Muon+Electron PRL ! 96-98: Muon only from Giulia's thesis ! D*,D 93-98: PRD publication exclusive D*+,D and inclusive D*. ! K+Vtx 96-98: Final 96-98 R17 analysis as in Tom's thesis. ! ! Jul/4/01 Revised with new summer-2001 LEPEWWG input standard. ! Jan/04 Added correlation coeff. and Tom's thesis result ! Sep/04 Rescaling for final summer04 EW parameters & lowered ! Ab dependency error to combined SLD Ab error. ! ! Average Lepton D*,D+ K+Vtx Measurement values 0.6712 0.5908 0.6882 0.6747 Statistical correlation Matrix 1.0000 0.0700 0.0540 0.0700 1.0000 0.1190 0.0540 0.1190 1.0000 Data Statistics 0.0208 0.0552 0.0349 0.0290 MC statistics 0.0021 0.0000 0.0000 0.0043 ML weights 0.0018 0.0165 0.0000 0.0000 Self-calib statistics 0.0098 0.0000 0.0000 0.0199 Tracking inefficiency 0.0015 0.0027 0.0000 0.0024 Tracking resolution 0.0016 0.0000 0.0000 0.0033 Jet axis smearing 0.0009 0.0087 0.0000 0.0000 mu background level 0.0014 0.0135 0.0000 0.0000 e background level 0.0002 0.0019 0.0000 0.0000 mu background asymmetry 0.0009 0.0086 0.0000 0.0000 e background asymmetry 0.0007 0.0067 0.0000 0.0000 k-tag detector effect 0.0004 0.0000 0.0000 0.0008 D*,D bckgr rate /asym 0.0069 0.0000 0.0173 0.0000 b-tag purity 0.0038 0.0360 0.0000 0.0000 b-tag L/D 0.0003 0.0032 0.0000 0.0000 c-tag purity 0.0023 0.0000 0.0000 0.0046 K+Vtx internal 0.0042 0.0000 0.0000 0.0085 BR(b->l) 0.0006 0.0058 0.0000 0.0000 BR(b->c->l) 0.0004 0.0039 0.0000 0.0000 BR(b->cbar->l-) 0.0014 0.0129 0.0000 0.0000 BR(b->tau->l) 0.0003 0.0025 0.0000 0.0000 BR(b->J/psi->l+l-) 0.0000 0.0002 0.0000 0.0000 BR(c->l) 0.0014 0.0129 0.0000 0.0000 B mixing 0.0043 0.0024 0.0101 0.0000 B-> D** l nu frac 0.0005 0.0045 0.0000 0.0000 D->l spectrum 0.0004 0.0042 0.0000 0.0000 Bs fraction 0.0005 0.0043 0.0000 0.0000 Lambda b fraction 0.0003 0.0026 0.0000 0.0000 D->K production 0.0000 0.0000 0.0000 0.0000 b frag xEb 0.0004 0.0024 0.0004 0.0000 c frag xEc 0.0016 0.0127 0.0005 0.0000 b frag shape 0.0002 0.0015 0.0000 0.0000 c frag shape 0.0011 0.0000 0.0028 0.0000 g->cc 0.0010 0.0014 0.0003 0.0015 g->bb 0.0002 0.0003 0.0000 0.0004 Polarization 0.0034 0.0038 0.0034 0.0034 QCD corrections 0.0022 0.0050 0.0028 0.0012 BR(Z->b bbar) 0.0009 0.0006 0.0000 0.0017 BR(Z->c cbar) -0.0014 -0.0075 0.0000 -0.0012 Ab variation -0.0003 0.0047 -0.0015 -0.0004 ** Total error 0.0274 0.0759 0.0406 0.0372 ** Systematic error sum 0.0157 0.0521 0.0208 0.0233 Weight fraction 1.0000 0.1067 0.4016 0.4917 Combined result = 0.6712+- 0.0224+- 0.0157