Abstract
We compute the non-factorisable \( \mathcal{O} \)(\( {\alpha}_s^2 \)) corrections to t-channel single-top quark production at the LHC. These peculiar corrections arise because of interactions between the heavy- and the light-quark lines and appear for the very first time at next-to-next-to-leading order in perturbative QCD. We find that the non-factorisable corrections change the single-top production cross section and the relevant kinematic distributions in this process by about half a percent.
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Brønnum-Hansen, C., Melnikov, K., Quarroz, J. et al. Non-factorisable contribution to t-channel single-top production. J. High Energ. Phys. 2022, 61 (2022). https://doi.org/10.1007/JHEP06(2022)061
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DOI: https://doi.org/10.1007/JHEP06(2022)061