Mainz 2014 – scientific programme

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T: Fachverband Teilchenphysik

T 27: Supersymmetrie 2

T 27.3: Talk

Monday, March 24, 2014, 17:15–17:30, P4

Search for supersymmetry with jets, missing transverse momentum, tau leptons and one light lepton at the ATLAS detector — Philip Bechtle, Klaus Desch, Till Nattermann, Oliver Ricken, Steffen Schaepe, and •Martin Schultens — University of Bonn

One of the major goals in the physics program of the ATLAS experiment at the Large Hadron Collider (LHC) is the search for supersymmetric extensions of the Standard Model of particle physics (SUSY). In some SUSY models multiple tau leptons can appear at the end of the decay chain of the supersymmetric particles. Hence tau leptons are an important signature for those models.

Tau leptons can either decay into hadrons or into a lighter lepton (electron or muon). Due to the big background contributions at the LHC though, pure hadronic final states are difficult to analyze. The final state with one leptonically decaying tau however, provides the opportunity for good background suppression and has promising discovery potential as well.

In this presentation recent results in the search for final states with tau leptons and one light lepton (electron or muon) will be shown. These results are based on the full 2012 LHC dataset with an integrated luminosity of 21 fb⁻¹. They are interpreted in three different SUSY scenarios: Gauge-Mediated Supersymmetry Breaking (GMSB), Natural Gauge Mediation (NGM) and Bilinear R-Parity Violation (BRPV).