Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Top-quark pair hadroproduction at next-to-next-to-leading order in QCD   We report on a new calculation of the next-to-next-to-leading order (NNLO)
QCD radiative corrections to the inclusive production of top-quark pairs at
hadron colliders. The calculation is performed by using the $q_T$ subtraction
formalism to handle and cancel infrared singular contributions at intermediate
stages of the computation. We present numerical results for the total cross
section in $pp$ collisions at $\sqrt{s}=8$ TeV and $13$ TeV, and we compare
them with those obtained by using the publicly available numerical program
Top++. Our computation represents the first complete application of the $q_T$
subtraction formalism to the hadroproduction of a colourful high-mass system at
NNLO.

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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: physics
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The categories of this paper are: q-alg
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The categories of this paper are: q-bio
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg
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The categories of this paper are: math
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
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The categories of this paper are: q-fin