NNLO corrections to top pair production at hadron colliders: the quark-gluon reaction
By Michal Czakon, Alexander Mitov. 2012
758 citations recorded by the source corpus.
A bstractWe compute the next-to-next-to-leading order QCD correction to the total inclusive top pair production cross-section in the reaction $ qg\to t\overline{t}+X $. We find moderate $ \mathcal{O} $(1%) correction to central values at both Tevatron and LHC. The scale variation of the cross-section remains unchanged at the Tevatron and is significantly reduced at the LHC. We find that recently introduced approximation based on the high-energy limit of the top pair cross-section significantly deviates from the exact result. The results derived in the present work are included in version 1.4 of the program Top++. Work towards computing the reaction $ gg\to t\overline{t}+X $ is ongoing.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/c00f5dd27897b891837a17621bcc2749d930b6c2
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Citations in the corpus
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- A critical appraisal and evaluation of modern PDFs (2016, background): “[253] M.”
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- Parton distributions for the LHC run II (2014, background): “The inclusion of these data is especially powerful thanks to recent theoretical progress, specifically the completion of the computation of the NNLO corrections to the total cross section for top quark pair production [80, 81] and the computation of NNLO corrections to jet production in the gluon ch”
- Parton distribution benchmarking with LHC data (2012, result): “Theoretical progress towards the full NNLO result has been made recently [42–47], including the recent calculation of the full NNLO qg initiated contribution [44] (which amounts to a small O(1%) correction, contrary to previous approximate estimates [47]).”