Münster 2017 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 54: Suche nach neuen Teilchen 3
T 54.6: Vortrag
Dienstag, 28. März 2017, 18:00–18:15, JUR 2
Search for pair production of leptoquarks decaying into a top quark and a muon at the CMS experiment — Johannes Haller, Roman Kogler, Thomas Peiffer, •Arne Christoph Reimers, and Marc Stöver — Institut für Experimentalphysik, Universität Hamburg
In this talk we present a search for pair produced scalar leptoquarks in pp-collisions of √s=13 TeV. The data have been collected by the CMS experiment in 2016. In this analysis, the production of scalar leptoquarks decaying into a top quark and a muon is studied.
Events are selected by requiring two isolated muons. In events containing an additional electron, the 4-momentum of a top quark candidate is calculated from information of the leading electron, missing transverse energy and at least one jet. Leptoquark hypotheses are then constructed via a χ 2 minimization using top quark candidates and muons. The dominating standard model background (tt) is estimated from data by selecting a control region and extrapolating the data using additional shape and normalization information from simulation. The expected sensitivity of the analysis and exclusion limits are derived.