Theoretical top quark cross section at the Fermilab Tevatron and the CERN LHC

2008/05/25 by Nikolaos Kidonakis, R. Vogt, Ramona Vogt · 4 citations
Engineering · Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Superconducting Materials and Applications #hep-ph

paper · pdf · doi:10.1103/physrevd.78.074005

published as Phys.Rev.D78:074005,2008 · 14 pages, 4 figures

arxiv created 2008/05/25 · openalex publication_date 2008/10/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We present results for the top quark pair cross section at the Tevatron and the LHC. We use the resummed double differential cross section, employing the fully kinematics-dependent soft-anomalous-dimension matrices, to calculate the soft-gluon contributions at next-to-next-to-leading order (NNLO). We improve and update our previous estimates by refining our methods, including further subleading terms, and employing the most recent parton distribution function sets. The NNLO soft corrections significantly enhance the NLO cross section while considerably reducing the scale dependence. We provide a detailed discussion of all theoretical uncertainties in our calculation, including kinematics, scale, and parton distribution uncertainties, and clarify the differences between our work and other approaches in the literature.

Citations

• Observation of the Top Quark
• Observation of Top Quark Production in Pbar-P Collisions
• Top-quark physics at the LHC
• Updated predictions for the total production cross sections of top and of heavier quark pairs at the Tevatron and at the LHC
• Evidence for Production of Single Top Quarks and First Direct Measurement of|Vtb|
• Measurement of thepp¯→tt¯+Xproduction cross section ats=1.96 TeVin the fully hadronic decay channel
• Status of Eikonal Two-Loop Calculations with Massive Quarks
• Top quark physics at the LHC

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• Inverted neutrino mass hierarchy and new signals of a chromophobic charged Higgs at the Large Hadron Collider
• Search for leptonic decays of W′ bosons in pp collisions at √ s = 7 TeV
• Threshold expansion of massive coloured particle cross sections