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arXiv · 1210.6832

NNLO corrections to top pair production at hadron colliders: the quark-gluon reaction

Michal Czakon·Alexander Mitov
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Abstract

We 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\bar t + X. We find moderate 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\bar t+X is ongoing.

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Michal Czakon, Alexander Mitov. 2012-10-25. NNLO corrections to top pair production at hadron colliders: the quark-gluon reaction. https://doi.org/10.1007/jhep01(2013)080

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