NNLO final-state quark-pair corrections in four dimensions Page, Benjamin John Pittau, Roberto R.P. acknowledges the financial support of the MINECO Project FPA2016-78220-C3-3-P and the hospitality of the CERN TH department during the completion of this work. Our figures are prepared with Axodraw. We describe how NNLO final state quark-pair corrections are computed in FDR by directly enforcing gauge invariance and unitarity in the definition of the regularized divergent integrals. We give details of our approach and show how virtual and real contributions can be merged together without relying, explicitly or implicitly, on dimensional regularization. As an example, we recompute the H→bb¯+jets and γ∗→jets inclusive rates at the NNLO accuracy in the large NF limit of QCD. This demonstrates, for the first time, that physical results with intermediate infrared singularities can be obtained at NNLO using a fully four-dimensional procedure. 2020-05-13T11:34:41Z 2020-05-13T11:34:41Z 2019-04-25 journal article Page, B., Pittau, R. NNLO final-state quark-pair corrections in four dimensions. Eur. Phys. J. C 79, 361 (2019). [https://doi.org/10.1140/epjc/s10052-019-6865-6] http://hdl.handle.net/10481/62022 10.1140/epjc/s10052-019-6865-6 eng http://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España Springer Nature