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The E6SSM is a promising model based on the group E6, assumed to be broken atthe GUT scale, leading to the group SU(3)\times SU(2)\times U(1)\times U(1)' atthe TeV scale. It gives a solution to the MSSM {\mu}-problem withoutintroducing massless axions, gauge anomalies or cosmological domain walls. Themodel contains three families of complete 27s of E6, giving a richerphenomenology than the MSSM. The E6SSM generically predicts gluino cascadedecay chains which are about 2 steps longer than the MSSM's due to the presenceof several light neutralino states. This implies less missing (and morevisible) transverse momentum in collider experiments and kinematicaldistributions such as M_eff are different. Scans of parameter space and MCanalysis suggest that current SUSY search strategies and exclusion limits haveto be reconsidered.

E6SSM vs MSSM gluino phenomenology