The two-loop helicity amplitudes for gg → V1 V2 → 4 leptons

Andreas von Manteuffel, Lorenzo Tancredi

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64 Scopus citations

Abstract

Abstract: We compute the two-loop massless QCD corrections to the helicity amplitudes for the production of two electroweak gauge bosons in the gluon fusion channel, gg → V1V2, keeping the virtuality of the vector bosons V1 and V2 arbitrary and taking their decays into leptons into account. The amplitudes are expressed in terms of master integrals, whose representation has been optimised for fast and reliable numerical evaluation. We provide analytical results and a public C++ code for their numerical evaluation on HepForge at http://vvamp.hepforge.org.

Original languageEnglish
Article number197
JournalJournal of High Energy Physics
Volume2015
Issue number6
DOIs
StatePublished - 3 Jun 2015
Externally publishedYes

Keywords

  • NLO Computations
  • QCD Phenomenology

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