MSSM Effects in Top-antitop Production at the LHC

Abstract

We report on a calculation of the effects of supersymmetry on the cross-section for top-antitop production at LHC. A numerical study is carried out for the ten benchmarks of the Snowmass accord. It is found that the higher order effects involving supersymmetric particles in internal loops can be as high as 6%, both for the cross-section and the (parity even) helicity asymmetry, for one particular benchmark. For other benchmarks smaller but nonetheless observable corrections are found.

References in corpus (12)

• SUSY Les Houches Accord: Interfacing SUSY Spectrum Calculators, Decay Packages, and Event Generators
• Top quark pair production and decay at hadron colliders
• Electroweak effects in top-quark pair production at Hadron Colliders
• Weak interaction corrections to hadronic top quark pair production
• Electroweak corrections to top-quark pair production in quark--antiquark annihilation
• Mixed QCD and weak corrections to top quark pair production at hadron colliders
• Weak corrections to gluon-induced top-antitop hadro-production
• Weak corrections to four-parton processes
• Joint resummation for heavy quark production
• Theoretical status of the top quark cross section
• SUSY QCD one-loop effects in (un)polarized top-pair production at hadron colliders
• Supersymmetric virtual effects in heavy quark pair production at LHC

Cited by in corpus (4)

• Weak interaction corrections to hadronic top quark pair production: contributions from quark-gluon and $b\bar{b}$ induced reactions
• Anomalous gtt couplings in the Littlest Higgs Model with T-parity
• Strong and Electro-Weak Supersymmetric Corrections to Single Top Processes at the Large Hadron Collider
• MSSM corrections to the top-antitop quark forward-backward asymmetry at the Tevatron