Antenna subtraction at NNLO with hadronic initial states: Double real radiation for initial-initial configurations with two quark flavours

Radja Boughezal*, Aude Gehrmann-De Ridder, Mathias Ritzmann

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

The antenna subtraction formalism allows to calculate QCD corrections to jet observables. Within this formalism, the subtraction terms are constructed using antenna functions describing all unresolved radiation between a pair of hard radiator partons. In this paper, we focus on the subtraction terms for double real radiation contributions to jet observables in hadron-hadron collisions evaluated at NNLO. An essential ingredient to these subtraction terms are the four-parton antenna functions with both radiators in the initial state. We outline the construction of the double real subtraction terms, classify all relevant antenna functions and describe their integration over the relevant antenna phase space. For the initial-initial antenna functions with two quark flavours, we derive the phase space master integrals and obtain the integrated antennae.

Original languageEnglish (US)
Article number98
JournalJournal of High Energy Physics
Volume2011
Issue number2
DOIs
StatePublished - 2011

Keywords

  • Hadronic colliders
  • Jets
  • QCD

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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