Hamburg 2016 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 26: Suche nach Supersymmetrie II (Leptonische Endzustände)
T 26.5: Vortrag
Montag, 29. Februar 2016, 17:45–18:00, VMP5 HS B2
Latest analysis results and statistical interpretations for SUSY searches at √s = 13 TeV with two same-sign leptons, jets and ET miss at the ATLAS detector — •Fabio Cardillo and Peter Tornambé — Albert-Ludwigs Universität Freiburg
A search for supersymmetric phenomena in final states with two leptons with the same electric charge, jets and missing transverse energy ETmiss is presented. The production of same-sign lepton pairs or three leptons is only induced by rare Standard Model processes with very small cross-sections. The search thus benefits from little background and has a good exclusion potential in compressed SUSY spectra. This analysis has been performed already in Run-I of the LHC and provided powerful exclusion limits for various SUSY scenarios.
In the ongoing Run-II, the search was conducted with the full dataset of pp collisions at √s = 13 TeV recorded with the ATLAS detector in 2015 corresponding to a total integrated luminosity of 3.3 fb−1. The sensitivity to a big variety of supersymmetric models is illustrated by the interpretation of the results in the context of four different SUSY benchmark scenarios producing same-sign leptons signatures. The results can be used to set model-independent limits to new physics signals as well as increasing the existing limits on different supersymmetric scenarios with respect to the previous Run-I results.
This talk will present the latest results of the same-sign/3L analysis published at the end of 2015. Furthermore, analysis details will be addressed and the prospects for the progressive data-taking during Run-II will be shown.