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arXiv · 1011.6661

Two-Loop Leading Color Corrections to Heavy-Quark Pair Production in the Gluon Fusion Channel

R. Bonciani·A. Ferroglia·T. Gehrmann·A. von Manteuffel·C. Studerus
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Abstract

We evaluate the two-loop QCD diagrams contributing to the leading color coefficient of the heavy-quark pair production cross section in the gluon fusion channel. We obtain an analytic expression, which is valid for any value of the Mandelstam invariants s and t and of the heavy-quark mass m. Our findings agree with previous analytic results in the small-mass limit and with recent results for the coefficients of the IR poles.

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R. Bonciani, A. Ferroglia, T. Gehrmann, A. von Manteuffel, C. Studerus. 2010-11-30. Two-Loop Leading Color Corrections to Heavy-Quark Pair Production in the Gluon Fusion Channel. https://doi.org/10.1007/jhep01(2011)102

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