It's a Gluino

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Abstract
For a long time it has been known that the like-sign dilepton signature can help establish the existence of a gluino at the LHC. To unambiguously claim that we see a strongly interacting Majorana fermion -- which we could call a gluino -- we need to prove that the particle responsible for the like-sign dilepton events is indeed a fermion. Using only angular correlations in the same gluino decay cascade which is used to measure its mass, we show how to distinguish a universal extra dimensional interpretation with a bosonic heavy gluon from supersymmetry with a fermionic gluino. Assuming a supersymmetric interpretation, we show how the same angular correlations can be used to study the left--right nature of the sfermions appearing in the decay chain.

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