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arxiv: 1602.00623 · v4 · pith:6AYOEQOYnew · submitted 2016-02-01 · ✦ hep-ph

Ordering multiple soft gluon emissions

classification ✦ hep-ph
keywords amplitudeemissionsgluonmultipleproductsoftaccuracyalgorithm
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We present an expression for the QCD amplitude for a general hard scattering process with any number of soft gluon emissions, to one-loop accuracy. The amplitude is written in two different but equivalent ways: as a product of operators ordered in dipole transverse momentum and as a product of loop-expanded currents. We hope that these results will help in the development of an all-orders algorithm for multiple emissions that includes the full colour structure and both the real and imaginary contributions to the amplitude.

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