Novel gluino cascade decays in E6 inspired models

Abstract

We point out that the extra neutralinos and charginos, generically appearing in a large class of $E_6$ inspired models, lead to distinctive signatures from gluino cascade decays involving longer decay chains, more visible transverse energy, softer jets and leptons and less missing transverse energy than in the Minimal Supersymmetric Standard Model (MSSM). On the one hand, this makes the gluino harder to discover for certain types of conventional analysis. On the other hand, the $E_6$ inspired models have enhanced 3- and 4-lepton signatures, as compared to the MSSM, making the gluino more visible in these channels. After extensive scans over the parameter space, we focus on representative benchmark points for the two models, and perform a detailed Monte Carlo analysis of the 3-lepton channel, showing that $E_6$ inspired models are clearly distinguishable from the MSSM in gluino cascade decays.

4 pages, 6 figures

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• Fine Tuning in the Constrained Exceptional Supersymmetric Standard Model
• Threshold Corrections in the Exceptional Supersymmetric Standard Model
• Searching for signatures of $E_6$
• Dark matter candidates in the constrained Exceptional Supersymmetric Standard Model
• Leptogenesis as an origin of dark matter and baryon asymmetries in the E6 inspired SUSY models
• Leptogenesis and Dark Matter-Nucleon Scattering Cross Section in the SE6SSM
• TeV-scale leptoquark searches at the LHC and their E${}_6$SSM Interpretation
• A Review of the Exceptional Supersymmetric Standard Model
• Interactions of exotic neutralino dark matter with nucleons in $U(1)$ extensions of the MSSM originating from $E_6$ GUTs