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We present a local subtraction scheme for computing next-to-next-to-leadingorder QCD corrections to the production of a massive quark-antiquark pair froma colourless initial state. The subtraction terms are built following theCoLoRFulNNLO method and refined in such a way that their integration gives riseto compact, fully analytic expressions. All ingredients necessary for anumerical implementation of our subtraction scheme are provided in detail. Asan example, we calculate the fully differential decay rate of the StandardModel Higgs boson to massive bottom quarks at next-to-next-to-leading orderaccuracy in perturbative QCD.

Fully exclusive heavy quark-antiquark pair production from a colourless initial state at NNLO in QCD