Münster 2017 – scientific programme

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T: Fachverband Teilchenphysik

T 75: Top Quark 4 (Eigenschaften)

T 75.1: Talk

Wednesday, March 29, 2017, 16:45–17:00, JUR 4

Measurement of the top-quark mass using pp collision data at √s = 13 TeV with the ATLAS detector — •Sebastian Schulte^1,2, Andrea Knue¹, Stefan Kluth¹, and Richard Nisius¹ — ¹Max-Planck-Institut für Physik München — ²Physik Department Technische Universität München

The top quark is the heaviest known elementary particle of the Standard Model. Precise measurements of its properties are important, not only for the accurate understanding of the Standard Model, but also for the search for new physics processes. The mass of the top quark has been subject of intense studies at the Tevatron and the LHC, where it has been measured to so far unprecedented precision. In this talk, first studies of the top-quark mass based on 13 TeV pp collision data are presented. The data were recorded with the ATLAS experiment in 2015 and 2016. The studies are performed using top-quark pair events in the lepton+jets channel. A three dimensional template fit is employed in order to reduce the systematic uncertainties.