Top-quark hadroproduction in NNLO QCD

Simone Devoto
2019 Proceedings of 14th International Symposium on Radiative Corrections — PoS(RADCOR2019)   unpublished
The study of top-quark production and decay is central in the LHC physics programme, allowing precise tests of the Standard Model and offering a window on possible new physics. Accurate theoretical predictions for this process are therefore crucial. We report on a new calculation of the next-to-next-to-leading order QCD radiative corrections to the production of top-quark pairs at hadron colliders. The calculation is performed by using the q T -subtraction method to handle and cancel infrared
more » ... d cancel infrared singular contributions at intermediate stages of the computation, and it represents its first complete application to the hadroproduction of a colourful high-mass system at next-tonext-to-leading order. We discuss the calculation of the additional soft contributions needed to implement q T subtraction for this process, and we show first numerical results.
doi:10.22323/1.375.0004 fatcat:sjkrsqgjinb63prqo7ylxcfp6u