Next-to-leading order QCD predictions for top-quark pair production with up to three jets

Höche, S.; Maierhöfer, P.; Moretti, N.; Pozzorini, S.; Siegert, F.

doi:10.1140/epjc/s10052-017-4715-y

Title: Next-to-leading order QCD predictions for top-quark pair production with up to three jets

Journal Article · Tue Mar 07 00:00:00 EST 2017 · European Physical Journal. C, Particles and Fields

DOI:https://doi.org/10.1140/epjc/s10052-017-4715-y· OSTI ID:1345865

Höche, S.; Maierhöfer, P.; Moretti, N.; Pozzorini, S.; Siegert, F.

We present theoretical predictions for the production of top-quark pairs with up to three jets at the next-to leading order in perturbative QCD. The relevant calculations are performed with Sherpa and OpenLoops. To address the issue of scale choices and related uncertainties in the presence of multiple scales, we compare results obtained with the standard scale HT/2 at fixed order and the MINLO procedure. Analyzing various cross sections and distributions for tt+0,1,2,3 jets at the 13 TeV LHC we find a remarkable overall agreement between fixed-order and MINLO results. The differences are typically below the respective factor-two scale variations, suggesting that for all considered jet multiplicities, missing higher-order effects should not exceed the ten percent level.

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Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)

Grant/Contract Number:: AC02-76SF00515; AC02- 05CH11231; AC02-05CH11231; NSF PHY11-25915; PITN-GA-2012-316704; SI 2009/1-1; BSCGI0-157722; PP00P2-153027

OSTI ID:: 1345865

Alternate ID(s):: OSTI ID: 1361072; OSTI ID: 1502956

Report Number(s):: SLAC-PUB-16696, ZU-TH-24/16; MCNET-16-31; FR-PHENO-2016-012; 145; PII: 4715

Journal Information:: European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Vol. 77 Journal Issue: 3; ISSN 1434-6044

Publisher:: Springer Science + Business MediaCopyright Statement

Country of Publication:: Germany

Language:: English

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Cited by: 19 works

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References (52)

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