NNLO final-state quark-pair corrections in four dimensions
Metadatos
Mostrar el registro completo del ítemEditorial
Springer Nature
Fecha
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]
Patrocinador
Financial support of the MINECO Project FPA2016-78220-C3-3-PResumen
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.