Speaker
Description
In this talk, I will present a calculation of the NNLO mixed QCD-EW corrections to the neutral-current Drell-Yan production of a pair of massless leptons in the high invariant-mass region. Our computation is fully differential with respect to the final state particles.
We find that the mixed corrections corrections are larger than what one would expect based on the magnitude of the coupling constants, and they can exceed the pure NNLO QCD contribution in a large portion of the phase space. At relatively low values of the dilepton invariant mass, mll \sim 200 GeV, we find unexpectedly large mixed QCD-electroweak corrections at the level of -1%. In the TeV region, we observe that these corrections can be well approximated by the product of QCD and electroweak corrections, as expected from Sudakov factorisation.
