Soft Gluons and Non-global Observables

18 Jul 2018, 10:15
25m
Charpak Amphitheater (Paris)

Charpak Amphitheater

Paris

UPMC (Jussieu) Campus

Speaker

Prof. Mike Seymour (University of Manchester)

Description

We present an evolution algorithm for soft gluon exchanges and the resummation of non-global logarithms. Our approach applies to generic hard-scattering processes involving any number of coloured partons and we present a reformulation of the algorithm in such a way as to make the cancellation of infrared divergences explicit. Handling large colour matrices presents the most significant challenge to numerical implementations and we present a means to expand systematically about the leading colour approximation. We present first numerical results obtained with a framework which can cover a large class of such evolution algorithms.

Primary authors

Dr Rene Angeles Martinez (IFJ Cracow) Mr Matthew De Angelis (University of Manchester) Prof. Jeff Forshaw (University of Manchester) Dr Simon Plätzer (University of Vienna) Prof. Mike Seymour (University of Manchester)

Presentation materials