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The singular behavior of one-loop massive QCD amplitudes with one external soft gluon

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arxiv 1107.4384 v1 pith:HSOSY5EU submitted 2011-07-21 hep-ph

Isabella Bierenbaum , Michal Czakon , Alexander Mitov This is my paper · ORCID
classification hep-ph
keywords massiveone-loopamplitudesbehaviorcurrentexternalfermionsgluon
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We calculate the one-loop correction to the soft-gluon current with massive fermions. This current is process independent and controls the singular behavior of one-loop massive QCD amplitudes in the limit when one external gluon becomes soft. The result derived in this work is the last missing process-independent ingredient needed for numerical evaluation of observables with massive fermions at hadron colliders at the next-to-next-to-leading order.

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  1. NNLO soft functions for heavy-quark pair production at hadron colliders

    hep-ph 2026-08 accept novelty 7.0 of 10

    The paper delivers the first NNLO 0-jettiness soft function for hadronic top-quark pair production and generalises SoftSERVE to massive quarks.

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