The real-virtual antenna functions for S → QQ X at NNLO QCD
Dekkers, Oliver · Bernreuther, Werner
Original · EN
We determine, in the antenna subtraction framework for handling infrared divergences in higher order QCD calculations, the real-virtual antenna functions for processes involving the production of a pair of massive quarks by an uncolored initial state at NNLO QCD. The integrated leading and subleading color real-virtual antenna functions are computed analytically in terms of (cyclotomic) harmonic polylogarithms. As a by-product and check we compute RQ=σ(e+e-→ γ*→ QQX)/σ(e+e-→ γ*→μ+μ-) and compare with existing results. Our result for RQ is exact to order αₛ².
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