Göttingen 2012 – scientific programme

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T: Fachverband Teilchenphysik

T 15: Beyond the Standard Model (Theorie) 1

T 15.6: Talk

Monday, February 27, 2012, 18:00–18:15, VG 3.102

Spin effects in the antler topology at hadron colliders — •Lisa Edelhäuser — RWTH Aachen

If new physics is discovered at the LHC, it will be a crucial task to determine the spin of the new particles, as this is necessary in order to pin down the underlying theoretical model. We focus here on processes with very short decay chains such as dilepton production plus missing energy. We do not restrict ourselves to any specific model, but perform our analysis in a model-independent fashion which includes e.g. Sleptons in Susy or KK-Leptons in UED as special cases. We investigate to which extent variables that were proposed in the literature can discriminate between different spin scenarios. We then examine how different mass and coupling scenarios can influence the discrimination power of those variables.