Wuppertal 2015 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 2: SUSY: Zerfälle mit Taus, Interpretationen

T 2.3: Vortrag

Montag, 9. März 2015, 14:30–14:45, L.10.31 (HS 10)

Search for supersymmetry with jets, missing transverse momentum, and two or more tau leptons with the ATLAS detector — Philip Bechtle, Klaus Desch, Oliver Ricken, •Steffen Schaepe, and Martin Schultens — University of Bonn

SUSY signatures with tau leptons in the final state play an important role in the search for new physics. Various mechanisms exist that make the scalar partners of the third generation fermions of the Standard Model (SM) very attractive for searches, either due to their mass or their couplings to other SUSY and SM particles. Moreover, only very few SM processes can produce final states containing multiple tau leptons and large missing energy.

In this talk, status and perspectives of the search for SUSY with final states containing two or more hadronically decaying tau leptons and no light leptons with the ATLAS detector will be presented.

In particular the results of the recently published paper summarizing the ATLAS Run I searches for strong production SUSY with tau final states will be presented. Since no excess of events has been observed above the SM prediction, 95 % confidence level upper limits are set on the production cross section for new physics in the context of various SUSY models (GMSB, nGM, bRPV). Furthermore the role of tau searches in the context of the general ATLAS SUSY program will be discussed. An outlook on the extension of the present search to both new models and Run II data will be given.