Table 3.

List of systematic uncertainties for the fits to the combined data set using the procedures described in Sect. 5. With the exception of the flavor-dependent JEC terms, the total systematic uncertainty is obtained from the sum in quadrature of the individual systematic uncertainties. The values in parentheses with indented labels are already included in the preceding uncertainty source. A positive sign indicates an increase in the value of $m_{\text{t}}$ or the JSF in response to a $+1\sigma$ shift and a negative sign indicates a decrease. The statistical uncertainty in the shift in $m_{\text{t}}$ is given when different samples are compared. The statistical uncertainty in the JSF shifts is 0.1% for these sources

	2D approach		1D approach	Hybrid
	$\delta m_t^{\text{2D}}$ [$\text{GeV}$ ]	$\delta {\text{JSF}}^{\text{2D}}$ (%)	$\delta m_t^{\text{1D}}$ [$\text{GeV}$ ]	$\delta m_t^{\text{hyb}}$ [$\text{GeV}$ ]	$\delta {\text{JSF}}^{\text{hyb}}$ (%)
Experimental uncertainties
Method calibration	0.05	< 0.1	0.05	0.05	< 0.1
JEC (quad. sum)	0.13	0.2	0.83	0.18	0.3
– InterCalibration	($-0.02$)	(< 0.1)	($+0.16$)	($+0.04$)	(< 0.1)
– MPFInSitu	($-0.01$)	(< 0.1)	($+0.23$)	($+0.07$)	(< 0.1)
– Uncorrelated	($-0.13$)	($+0.2$)	($+0.78$)	($+0.16$)	($+0.3$)
Jet energy resolution	$-0.20$	$+0.3$	$+0.09$	$-0.12$	$+0.2$
$\text{b}$ tagging	$+0.03$	< 0.1	$+0.01$	$+0.03$	< 0.1
Pileup	$-0.08$	$+0.1$	$+0.02$	$-0.05$	$+0.1$
Non-$\text{t}\overline{\text{t}}$ background	$+0.04$	$-0.1$	$-0.02$	$+0.02$	$-0.1$
Modeling uncertainties
JEC Flavor (linear sum)	$-0.42$	$+0.1$	$-0.31$	$-0.39$	< 0.1
– light quarks (uds)	($+0.10$)	($-0.1$)	($-0.01$)	($+0.06$)	($-0.1$)
– charm	($+0.02$)	(< 0.1)	($-0.01$)	($+0.01$)	(< 0.1)
– bottom	($-0.32$)	(< 0.1)	($-0.31$)	($-0.32$)	(< 0.1)
– gluon	($-0.22$)	($+0.3$)	($+0.02$)	($-0.15$)	($+0.2$)
$\text{b}$ jet modeling (quad. sum)	0.13	0.1	0.09	0.12	< 0.1
– $\text{b}$ frag. Bowler–Lund	($-0.07$)	($+0.1$)	($-0.01$)	($-0.05$)	(< 0.1)
– $\text{b}$ frag. Peterson	($+0.04$)	(< 0.1)	($+0.05$)	($+0.04$)	(< 0.1)
– semileptonic $\mathrm{B}$ decays	($+0.11$)	(< 0.1)	($+0.08$)	($+0.10$)	(< 0.1)
PDF	0.02	< 0.1	0.02	0.02	< 0.1
Ren. and fact. scales	0.02	0.1	0.02	0.01	< 0.1
ME/PS matching	$-0.08\pm 0.09$	$+0.1$	$+0.03\pm 0.05$	$-0.05\pm 0.07$	$+0.1$
ME generator	$+0.15\pm 0.23$	$+0.2$	$+0.32\pm 0.14$	$+0.20\pm 0.19$	$+0.1$
ISR PS scale	$+0.07\pm 0.09$	$+0.1$	$+0.10\pm 0.05$	$+0.06\pm 0.07$	< 0.1
FSR PS scale	$+0.24\pm 0.06$	$-0.4$	$-0.22\pm 0.04$	$+0.13\pm 0.05$	$-0.3$
Top quark $p_{\mathrm{T}}$	$+0.02$	$-0.1$	$-0.06$	$-0.01$	$-0.1$
Underlying event	$-0.10\pm 0.08$	$+0.1$	$+0.01\pm 0.05$	$-0.07\pm 0.07$	$+0.1$
Early resonance decays	$-0.22\pm 0.09$	$+0.8$	$+0.42\pm 0.05$	$-0.03\pm 0.07$	$+0.5$
Color reconnection	$+0.34\pm 0.09$	$-0.1$	$+0.23\pm 0.06$	$+0.31\pm 0.08$	$-0.1$
Total systematic	0.75	1.1	1.10	0.62	0.8
Statistical (expected)	0.09	0.1	0.06	0.08	0.1
Total (expected)	0.76	1.1	1.10	0.63	0.8