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arXiv · 2201.03480

Non-factorisable two-loop contribution to $t$-channel single-top production

Christian Brønnum-Hansen·Jérémie Quarroz·Chen-Yu Wang
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Abstract

We report on a recent computation of the non-factorisable contribution to the two-loop helicity amplitude for $t$-channel single-top production arXiv:2108.09222. This is the last missing piece of the two-loop virtual corrections to this process. We perform analytic integration-by-parts reduction to master integrals and use the auxiliary mass flow method for their fast numerical evaluation. The impact of the non-factorisable corrections to single-top production on experimentally measured observables is estimated.

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Christian Brønnum-Hansen, Jérémie Quarroz, Chen-Yu Wang. 2022-01-10. Non-factorisable two-loop contribution to $t$-channel single-top production. https://arxiv.org/abs/2201.03480

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