"Table 22" of "Measurement of differential $t$-channel single top (anti)quark production cross-sections at 13 TeV with the ATLAS detector"

Best fit results for the expected relative change in the differential $tq$ and $\bar{t}q$ cross-sections as a function of $C_{Qq}^{3,1}/\Lambda^2$. The predictions for the expected relative change are obtained by unfolding the distributions of the EFT MC samples with the nominal migration matrix and efficiency. The parameterisations are determined from least-square fits to the predictions normalised to the prediction from the EFT MC sample generated with $C_{Qq}^{3,1}/\Lambda^2$ set to zero. The parameterisations take the form $\Delta\tilde{\sigma}_{t\text{ or }\bar{t}}(C_{Qq}^{3,1}/\Lambda^2) = \left(1 + a_1 \cdot C_{Qq}^{3,1}/\Lambda^2 + a_2 \cdot (C_{Qq}^{3,1}/\Lambda^2)^2\right)$.