The paper delivers the first NNLO 0-jettiness soft function for hadronic top-quark pair production and generalises SoftSERVE to massive quarks.
Next-to-next-to-leading order $N$-jettiness soft function for $tW$ production
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abstract
We calculate the $N$-jettiness soft function for $tW$ production up to next-to-next-to-leading order in QCD, which is an important ingredient of the $N$-jettiness subtraction method for predicting the differential cross sections of massive coloured particle productions. The divergent parts of the results have been checked using the renormalization group equations controlled by the soft anomalous dimension.
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NNLO soft functions for heavy-quark pair production at hadron colliders
The paper delivers the first NNLO 0-jettiness soft function for hadronic top-quark pair production and generalises SoftSERVE to massive quarks.