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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Bonciani, R., Ferroglia, A., Gehrmann, T. et al. Two-loop leading color corrections to heavy-quark pair production in the gluon fusion channel. J. High Energ. Phys. 2011, 102 (2011). https://doi.org/10.1007/JHEP01(2011)102
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DOI: https://doi.org/10.1007/JHEP01(2011)102