One-loop triple collinear splitting amplitudes in QCD

Simon Badger*, Francesco Buciuni, Tiziano Peraro

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We study the factorisation properties of one-loop scattering amplitudes in the triple collinear limit and extract the universal splitting amplitudes for processes initiated by a gluon. The splitting amplitudes are derived from the analytic Higgs plus four partons amplitudes. We present compact results for primitive helicity splitting amplitudes making use of super-symmetric decompositions. The universality of the collinear factorisation is checked numerically against the full colour six parton squared matrix elements.

Original languageEnglish
Article number188
Number of pages29
JournalJournal of High Energy Physics
Issue number9
DOIs
Publication statusE-pub ahead of print - 28 Sep 2015

Keywords

  • Scattering Amplitudes
  • Strong Coupling Expansion
  • QCD
  • TO-LEADING ORDER
  • GAUGE-THEORY AMPLITUDES
  • CROSS-SECTIONS
  • BETA-FUNCTION
  • ANOMALOUS DIMENSIONS
  • FACTORIZATION
  • TREE
  • SCATTERING
  • (NLO)-L-3
  • INTEGRALS

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