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

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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http://hal.in2p3.fr/in2p3-00541694
Contributor : Emmanuelle Vernay <>
Submitted on : Wednesday, December 1, 2010 - 8:49:52 AM
Last modification on : Thursday, November 19, 2020 - 12:58:50 PM

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R. Bonciani, A. Ferroglia, T. Gehrmann, A. von Manteuffel, C. Studerus. Two-Loop Leading Color Corrections to Heavy-Quark Pair Production in the Gluon Fusion Channel. Journal of High Energy Physics, Springer, 2011, 01, pp.102. ⟨10.1007/JHEP01(2011)102⟩. ⟨in2p3-00541694⟩

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