Threshold resummation for squark-antisquark and gluino-pair production at the LHC

Details Threshold resummation for squark-antisquark and gluino-pair production at the LHC Threshold resummation for squark-antisquark and gluino-pair production at the LHC

2008-07-15

arxiv.org/abs/0807.2405v1

Phys.Rev.Lett.102:111802,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.102.111802

We study the effect of soft gluon emission in the hadroproduction of squark-antisquark and gluino-gluino pairs at the next-to-leading logarithmic (NLL) accuracy within the framework of the minimal supersymmetric model. The one-loop soft anomalous dimension matrices controlling the colour evolution of the underlying hard-scattering processes are calculated. We present the resummed total cross sections and show numerical results for proton-proton collisions at 14 TeV. The size of the NLL contribution to the cross section and the reduction of the scale dependence of the theoretical predictions due to including soft gluon effects are discussed.

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