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We calculate the $\mathcal{O}(\alpha)$ weak corrections to top quark pairproduction at the LHC and include anomalous electroweak interactions fromdimension-six operators. The loop calculation and renormalization areconsistently done within the Standard Model Effective Field Theory. Sensitivityto the involved operators is exposed through the virtual corrections, whichreceive enhancement from electroweak Sudakov logarithms. We investigate theprospects of using this feature for probing New Physics at the LHC that so farhas only been studied in final states with on-shell sensitivity such as$t\bar{t}+Z$ or $t \to b W$. We find that the large $t\bar{t}$ production rateand the excellent perturbative control allow compensating the loop suppressionand yield remarkably strong constraints that are competitive with those from$t\bar{t}+Z$.

Electroweak Loops as a Probe of New Physics in $t\bar{t}$ Production at the LHC