Two-loop mixed QCD-EW corrections to neutral current Drell-Yan
Tommaso Armadillo, Roberto Bonciani, Simone Devoto, Narayan Rana,, Alessandro Vicini
TL;DR
This paper computes advanced two-loop mixed QCD-electroweak corrections for the neutral current Drell-Yan process, providing explicit formulas and addressing complex mass cases to improve precision in theoretical predictions.
Contribution
It introduces the first detailed calculation of two-loop mixed QCD-EW virtual corrections for Drell-Yan, including explicit finite remainders and handling complex masses.
Findings
Explicit formulas for infrared-subtracted finite remainders provided
Evaluation techniques for complex-valued mass integrals developed
Enhances precision of theoretical predictions for Drell-Yan processes
Abstract
We present the two-loop mixed strong-electroweak virtual corrections to the neutral current Drell-Yan process and we provide, in ancillary files, the explicit formulae of the infrared-subtracted finite remainder. The final state collinear singularities are regularised by the lepton mass. The evaluation of all the relevant Feynman integrals, including those with up to two internal massive lines, has been worked out relying on analytical and semi-analytical techniques, in the case of complex-valued masses.
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