Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-11-30
JHEP 1102:098,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
Minor corrections to the text and Mathematica file, a reference added, version accepted for publication in JHEP
Scientific paper
10.1007/JHEP02(2011)098
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 radiatior 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.
Boughezal Radja
Ridder Aude Gehrmann--De
Ritzmann Mathias
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