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arxiv 1010.4187 v2 pith:RCMQKS4B submitted 2010-10-20 hep-ph

Numerical NLO QCD calculations

classification hep-ph
keywords algorithmamplitudesintegrationnumericalone-looppartonsamplitudeapplies
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present an algorithm for the numerical calculation of one-loop QCD amplitudes. The algorithm consists of subtraction terms, approximating the soft, collinear and ultraviolet divergences of one-loop amplitudes and a method to deform the integration contour for the loop integration into the complex space. The algorithm is formulated at the amplitude level and does not rely on Feynman graphs. Therefore all required ingredients can be calculated efficiently using recurrence relations. The algorithm applies to massless partons as well as to massive partons.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations

    hep-ph 2014-05 accept novelty 7.0

    MadGraph5_aMC@NLO automates tree-level, NLO, shower-matched, and merged cross-section computations for collider processes in a unified flexible framework.