Summing Large-N Towers in Colour Flow Evolution

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 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 supressed contributions.

8 pages, 5 figures

References in corpus (2)

• Herwig++ Physics and Manual
• Colour reconnections in Herwig++

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