Table 6.

Impact of the sources of systematic uncertainty in the combined $\sigma (\text{W}+\text{c})$ measurement

Source	Uncertainty (%)
Lepton efficiency	0.7
Jet energy scale and resolution	0.8
$p_{\text{T}}^{\text{miss}}$ resolution	0.3
Pileup modelling	0.4
$\mathrm{\mu }$ in jet reconstruction efficiency	0.9
Secondary vertex reconstruction efficiency	1.8
Secondary vertex charge determination	1.0
Charm fragmentation and decay fractions	2.6
Charm fragmentation functions	0.3
Background subtraction	0.8
PDF	1.0
Limited size of MC samples	0.6
Integrated luminosity	2.6