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arXiv · 0909.3488

Colour structure in threshold resummation and squark-antisquark production at NLL

Martin Beneke·Pietro Falgari·Christian Schwinn
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Abstract

We consider the resummation of soft and Coulomb gluons for pair-production processes of heavy coloured particles at hadron colliders, and discuss recent results on the construction of a basis in colour space that diagonalizes the soft function to all orders in perturbation theory and the determination of the two-loop soft anomalous dimension needed for NNLL resummations. We present results for the combined NLL resummation of soft gluon and Coulomb-gluon effects for squark-antisquark production at the LHC.

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Martin Beneke, Pietro Falgari, Christian Schwinn. 2009-09-18. Colour structure in threshold resummation and squark-antisquark production at NLL. https://arxiv.org/abs/0909.3488

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