NNLO final-state quark-pair corrections in four dimensions
Metadata
Show full item recordEditorial
Springer Nature
Date
2019-04-25Referencia bibliográfica
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]
Sponsorship
Financial support of the MINECO Project FPA2016-78220-C3-3-PAbstract
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.