PoS - Proceedings of Science
Volume 260 - Loops and Legs in Quantum Field Theory (LL2016) - Parallel B4
MATRIX: A fully-differential NNLO(+NNLL) process library
M. Wiesemann,* M. Grazzini, S. Kallweit, D. Rathlev
*corresponding author
Full text: pdf
Published on: October 06, 2016
We review the computations of the next-to-next-to-leading order (NNLO) QCD corrections to vector-boson pair production processes in proton–proton collisions and their implementation in the numerical code MATRIX. Our calculations include the leptonic decays of W and Z bosons, consistently taking into account all spin correlations, off-shell effects and non-resonant contribu- tions. For massive vector-boson pairs we show inclusive cross sections, applying the respective mass windows chosen by ATLAS and CMS to define Z bosons from their leptonic decay prod- ucts, as well as total cross sections for stable bosons. Moreover, we provide samples of differential distributions in fiducial phase-space regions inspired by typical selection cuts used by the LHC experiments. For the vast majority of measurements, the inclusion of NNLO corrections signifi- cantly improves the agreement of the Standard Model predictions with data.
DOI: https://doi.org/10.22323/1.260.0072
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