The one-loop gluon amplitude for heavy-quark production at NNLO

Details The one-loop gluon amplitude for heavy-quark production at NNLO The one-loop gluon amplitude for heavy-quark production at NNLO

2008-09-08

arxiv.org/abs/0809.1355v1

Phys.Rev.D78:114006,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, 3 figures

Scientific paper

10.1103/PhysRevD.78.114006

We compute the one-loop QCD amplitude for the process gg-->Q\bar{Q} in dimensional regularization through order \epsilon^2 in the dimensional regulator and for arbitrary quark mass values. This result is an ingredient of the NNLO cross-section for heavy quark production at hadron colliders. The calculation is performed in conventional dimensional regularization, using well known reduction techniques as well as a method based on recent ideas for the functional form of one-loop integrands in four dimensions.

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