Münster 2017 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 54: Suche nach neuen Teilchen 3

T 54.5: Vortrag

Dienstag, 28. März 2017, 17:45–18:00, JUR 2

Search for pair production of leptoquarks decaying into a top quark and a tau lepton at the CMS experiment — Johannes Haller, Roman Kogler, Thomas Peiffer, Arne Reimers, and •Marc Stöver — Institut für Experimentalphysik, Universität Hamburg

A search for third generation leptoquarks at the LHC is presented, where the pair production of leptoquarks decaying into a top quark and a tau lepton is studied.
We focus on the lepton + jets channel where one of the top quarks decays hadronically and the other one leptonically. In addition, at least one tau lepton is required to decay hadronically. The study uses the full dataset of the year 2016 which was collected with the CMS detector at √s=13 TeV. The event selection is optimized for highest sensitivity. A data driven approach is used to estimate the standard model background arising from fake taus. Finally, the expected limits on the leptoquark production cross section are presented.