NNLL resummation for squark-antisquark pair production at the LHC

Details NNLL resummation for squark-antisquark pair production at the LHC NNLL resummation for squark-antisquark pair production at the LHC

2011-10-11

arxiv.org/abs/1110.2446v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 5 figures

Scientific paper

We consider the resummation of soft gluon emission for squark-antisquark pair-production at the LHC at next-to-next-to-leading-logarithmic (NNLL) accuracy in the framework of the minimal supersymmetric standard model. We present the analytical ingredients needed for the calculation and provide numerical predictions for the LHC at centre-of-mass energies of 7 and 14 TeV. We find a significant reduction in the scale uncertainty and a considerable increase in the prediction of the total cross section. Compared to the next-to-leading order prediction, the corrections increase the cross section by up to 30% for 1.5 TeV squarks at a centre-of-mass energy of 7 TeV.

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