# NNLO QCD subtraction for top-antitop production in the qq¯$$q\overline{q}$$ channel

@article{Abelof2014NNLOQS,
title={NNLO QCD subtraction for top-antitop production in the qq¯\$\$ q\overline\{q\} \$\$ channel},
author={Gabriel Abelof and A. Gehrmann-De Ridder and Philipp Maierh{\"o}fer and S. Pozzorini},
journal={Journal of High Energy Physics},
year={2014},
volume={2014},
pages={1-55}
}
• Published 25 April 2014
• Geology
• Journal of High Energy Physics
A bstractWe present the computation of the double real and real-virtual contributions to top-antitop pair production in the quark-antiquark channel at leading colour. The qq¯$$q\overline{q}$$ → tt¯g$$t\overline{t} g$$ amplitudes contributing to the real-virtual part are computed with OpenLoops, and their numerical stability in the soft and collinear regions is found to be sufficiently high to perform a realistic NNLO calculation in double precision. The subtraction terms required at real…
Light fermionic NNLO QCD corrections to top-antitop production in the quark-antiquark channel
• Physics
• 2014
A bstractWe present the NNLO corrections to top pair production in the quark-antiquark channel proportional to the number of light quark flavors Nl. While the double real corrections were derived
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A Four-Point Function for the Planar QCD Massive Corrections to Top-Antitop Production in the Gluon-Fusion Channel
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