DESY-13-237
MCNET-13-21
arXiv:1312.2448
Eur.Phys.J. C74 (2014) 2907

by: Plätzer, Simon (DESY)

Abstract:
We consider soft-gluon evolution in the colour flow basis. We give explicit expressions for the colour structure of the (one-loop) soft anomalous dimension matrix for an arbitrary number of partons, and we show how the successive exponentiation of classes of large- $N$ contributions can be achieved to provide a systematic expansion of the evolution in terms of colour-suppressed contributions.