Table 17.

Values of ${\mathit{\chi }}^2$ for the predictions using various PDF sets split by data set with the respective number of degrees of freedom ($\mathrm{n}.\mathrm{d}.\mathrm{f}.$). The contribution of the penalty term constraining the shifts of experimental and theoretical correlated uncertainties is listed separately in the row labelled “Correlated ${\mathit{\chi }}^2$”, see Eq. (16). The values to the left (right) of the vertical line refer to ${\mathit{\chi }}^2$ when the PDF uncertainties are included (excluded) in the evaluation

Data set	n.d.f.	ABM12	CT14	MMHT14	NNPDF3.0	ATLAS-epWZ12
$W^{+}\to {\ell }^{+}\mathit{\nu }$	11	11|21	10|26	11|37	11|18	12|15
$W^{-}\to {\ell }^{-}\overline{\mathit{\nu }}$	11	12|20	8.9|27	8.1|31	12|19	7.8|17
$Z/{\mathit{\gamma }}^{\ast }\to \ell \ell$ $(m_{\ell \ell }=46$–$66\text{GeV}$)	6	17|21	11|30	18|24	21|22	28|36
$Z/{\mathit{\gamma }}^{\ast }\to \ell \ell$ $(m_{\ell \ell }=66$–$116\text{GeV})$	12	24|51	16|66	20|116	14|109	18|26
Forward $Z/{\mathit{\gamma }}^{\ast }\to \ell \ell$ $(m_{\ell \ell }=66$–$116\text{GeV})$	9	7.3|9.3	10|12	12|13	14|18	6.8|7.5
$Z/{\mathit{\gamma }}^{\ast }\to \ell \ell$ $(m_{\ell \ell }=116$–$150\text{GeV})$	6	6.1|6.6	6.3|6.1	5.9|6.6	6.1|8.8	6.7|6.6
Forward $Z/{\mathit{\gamma }}^{\ast }\to \ell \ell$ $(m_{\ell \ell }=116$–$150\text{GeV})$	6	4.2|3.9	5.1|4.3	5.6|4.6	5.1|5.0	3.6|3.5
Correlated ${\mathit{\chi }}^2$		57|90	39|123	43|167	69|157	31|48
Total ${\mathit{\chi }}^2$	61	136|222	103|290	118|396	147|351	113|159