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Mainz 2014 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 27: Supersymmetrie 2

T 27.6: Vortrag

Montag, 24. März 2014, 18:00–18:15, P4

Measurement of the lepton-identification efficiencies for searches for Supersymmetry in events with two taus in the final stateChristopher Bock, Luis Escobar, •Yasmine Israeli, Federica Legger, Jeanette Lorenz, Alexander Mann, Balthasar Schachtner, Dorothee Schaile, Alberto Vesentini, and Josephine Wittkowski — Ludwig-Maximilians-Universität München

In the search for electroweak production of supersymmetric particles with the ATLAS experiment, events with two taus in the final state are investigated. The taus may decay hadronically or leptonically.
An important background to this analysis is given by events where other objects are misidentified as leptons (’fake leptons’).
We report on the measurement of the probabilities for the selected leptons to be either fake or real leptons in various Standard Model processes. These probabilities can be used in the so-called "Matrix Method" to estimate the contribution of the background from fake leptons to the analysis.

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