Soft and Coulomb gluon resummation in squark-antisquark production at the LHC

Details Soft and Coulomb gluon resummation in squark-antisquark production at the LHC Soft and Coulomb gluon resummation in squark-antisquark production at the LHC

2010-01-26

arxiv.org/abs/1001.4627v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 3 figures, to appear in the proceedings of the 9th International Symposium on Radiative Corrections (RADCOR 2009), Oc

Scientific paper

We present results for a combined resummation of soft and Coloumb gluon corrections in squark-antisquark production at the LHC, including the non-trivial interference of the two effects and the contribution of squark-antisquark bound states below threshold. The total correction to the next-to-leading order approximation is found to be sizeable, and amounts to 5-14 % in the squark mass region 200 GeV-2 TeV. The scale dependence of the total cross section is also reduced.

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