QCD corrections to triboson production

Achilleas Lazopoulos*, Kirill Melnikov, Frank Petriello

*Corresponding author for this work

Research output: Contribution to journalArticle

93 Scopus citations

Abstract

We present a computation of the next-to-leading order QCD corrections to the production of three Z bosons at the Large Hadron Collider. We calculate these corrections using a completely numerical method that combines sector decomposition to extract infrared singularities with contour deformation of the Feynman parameter integrals to avoid internal loop thresholds. The NLO QCD corrections to pp→ZZZ are approximately 50% and are badly underestimated by the leading order scale dependence. However, the kinematic dependence of the corrections is minimal in phase space regions accessible at leading order.

Original languageEnglish (US)
Article number014001
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume76
Issue number1
DOIs
StatePublished - Jul 5 2007

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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