Stop-antistop and sbottom-antisbottom production at LHC: a one-loop search for model parameters dependence

2008/04/30 by M. Beccaria, G. Macorini, L. Panizzi +2
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1142/s0217751x08041694

published as Int.J.Mod.Phys.A23:4779-4810,2008 · 44 pages, 23 eps figures

arxiv created 2008/07/25 · arxiv updated 2009/12/01

Abstract

We have computed the one-loop electroweak expression of diagonal and non diagonal stop-antistop and sbottom-antisbottom production from initial state gluons at LHC. We have investigated the possibility that the one-loop effects exhibit a dependence on "extra" supersymmetric parameters different from the final squark masses. Our results, given for a choice of twelve SUSY benchmark points in the MSSM with mSUGRA symmetry breaking, show that in some cases a mild dependence might arise, at the percent relative level, of not simple experimental detection.

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