Two-loop soft anomalous dimensions with massive and massless quarks

Details Two-loop soft anomalous dimensions with massive and massless quarks Two-loop soft anomalous dimensions with massive and massless quarks

2009-10-02

arxiv.org/abs/0910.0473v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 6 figures; to be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726

Scientific paper

I present results for two-loop soft anomalous dimensions, which are derived from dimensionally regularized diagrams with eikonal quark lines and control soft-gluon emission in hard-scattering processes. Detailed results for the UV poles of the eikonal integrals are shown for massive quarks, and the massless limit is also taken. The construction of soft anomalous dimensions at two-loops allows soft-gluon resummations at NNLL accuracy.

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