Speaker
Christian Broennum-Hansen
Description
Single top quarks are mainly produced through a t-channel W boson exchange, $q + b \to q^\prime + t$, at the LHC. The computation of the last missing ingredient for NNLO QCD corrections, the non-factorisable two-loop amplitude, was recently completed.
Despite being colour-suppressed and hence previously neglected, there is reason to expect this correction to have an impact comparable to that of the factorisable contribution.
In this talk I will present the calculation of the necessary two-loop virtual correction for the non-factorisable contribution and discuss its phenomenological impact on single-top production.
| Submitted on behalf of a Collaboration? | No |
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