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arXiv · 1602.00623

Ordering multiple soft gluon emissions

René Ángeles-Martínez·Jeffrey R. Forshaw·Michael H. Seymour
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Abstract

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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René Ángeles-Martínez, Jeffrey R. Forshaw, Michael H. Seymour. 2016-05-30. Ordering multiple soft gluon emissions. https://doi.org/10.1103/physrevlett.116.212003

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