Alexander Belyaev, Jonathan P. Hall, Stephen F. King, Patrik Svantesson
We point out that the extra neutralinos and charginos generically appearing in a large class of E6 inspired models lead to distinctive signatures from gluino cascade decays in comparison to those from the Minimal Supersymmetric Standard Model (MSSM). On one hand, these signatures involve longer decay chains, more visible transverse energy, softer jets and leptons and less missing transverse energy than in the MSSM, making the gluino harder to discover for certain types of conventional analysis. On the other hand, the E6 signatures have an enriched lepton multiplicity, providing enhanced 3- and 4-lepton signatures, which are much more suppressed in case of the MSSM. After extensive scans over the parameter space, we focus on representative benchmark points for the two models, perform detailed Monte Carlo analyses and demonstrate that E6 inspired models are clearly distinguishable from the MSSM in gluino cascade decays.
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http://arxiv.org/abs/1203.2495
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