Next-to-leading order corrections to $W^+$ 2 jet and $Z^+$ 2 jet production at hadron colliders

By John M. Campbell, R. Ellis. 2002

293 citations recorded by the source corpus.

We report on QCD radiative corrections to the processes $p\overline{p}\ensuremath{\rightarrow}W+2 \mathrm{jets}$ and $p\overline{p}\ensuremath{\rightarrow}Z+2 \mathrm{jets}$ at the Fermilab Tevatron. These processes are included in the Monte Carlo program MCFM, which allows the calculation of any infrared finite variable at next-to-leading order. Because of a better theoretical description of jets at next-to-leading order, some distributions exhibit significant corrections. As expected, the unphysical dependence of theoretical predictions upon the renormalization and factorization scales is greatly reduced compared to leading order. As an example of the predictions that may now be made with MCFM, we present a next-to-leading order estimate of the heavy flavor content of jets produced in association with vector bosons.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f7904f579fb8a0d87dffce718c472283a75aa05e

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In Nuclear and High Energy Physics

Citations in the corpus

Vector boson plus one jet production in POWHEG (2010, methodology): “The finite part of the virtual corrections has been taken from the MCFM program [12], that uses the virtual matrix elements given in ref.”
Non-perturbative QCD effects in jets at hadron colliders (2007, methodology): “In that case one would consider only a single reference jet, and one could use MCFM [49, 50] for the perturbative calculation.”
Towards an understanding of jet substructure (2013, methodology): “We have not investigated the behaviour of the fixed-order predictions in detail, however such a study would be worthwhile and is straightforward to perform to NLO in the jet mass distribution with tools such as MCFM [63] and NLOJet++ [64].”
Parton distribution benchmarking with LHC data (2012, methodology): “• Higgs production in association with a top quark pair, tt̄H, has been computed at LO with the MCFM program [39].”
MINLO: multi-scale improved NLO (2012, methodology): “[21], taking the virtual corrections from the MCFM package [24–26].”
Inclusive search for a vector-like T quark with charge 2/3 in pp collisions at √s=8 TeV (2014, methodology): “The normalization of the W+jets sample is determined directly from the data, and all other samples are normalized to the next-to-leading-order prediction of their cross sections as computed with MCFM [22].”