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Antenna subtraction for gluon scattering at NNLO
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Antenna subtraction for gluon scattering at NNLO
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We use the antenna subtraction method to isolate the double real radiation infrared singularities present in gluonic scattering amplitudes at next-to-next-to-leading order. The antenna subtraction framework has been successfully applied to the calculation of NNLO corrections to the 3-jet cross section and related event shape distributions in electron-positron annihilation. Here we consider processes with two coloured particles in the initial state, and in particular two-jet production at hadron colliders such as the Large Hadron Collider (LHC). We construct a subtraction term that describes the single and double unresolved contributions from the six-gluon tree-level process using antenna functions with initial state partons and show numerically that the subtraction term correctly approximates the matrix elements in the various single and double unresolved configurations.
Forward citations
Cited by 1 Pith paper
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Antenna subtraction at NNLO for heavy quark pair production at hadron colliders: the non-diagonal channels
NNLO antenna subtraction is completed for the qq, qq' and qg channels of heavy-quark pair production in full colour, with new massive soft factors and integrated antennae validated against Top++.
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