Hamburg 2016 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 77: Top Quark IV (single top, FCNC)
T 77.9: Vortrag
Mittwoch, 2. März 2016, 18:45–19:00, VMP9 HS
FCNC involving top quarks: current results, future experimental expectations, theory predictions — •Ozan Arslan1, Ian C. Brock1, and Dominic Hirshbuehl2 — 1University of Bonn — 2University of Wuppertal
Flavour Changing Neutral Current (FCNC) processes are highly suppressed in the Standard Model due to Glashow-Iliopoulos-Maiani (GIM) mechanism. However, in some extensions of the Standard Model such as supersymmetry (SUSY) and the 2-Higgs doublet model, the FCNC contributes at tree level, enhancing the branching ratio significantly. The FCNC are searched in single top-quark production, where a u(c)-quark interacts with a gluon, producing a single top-quark with no associated quark production. In this talk, we present the latest ATLAS results from the 8 TeV centre-of-mass energy collisions corresponding to an integrated luminosity of ∼ 20 fb−1. Furthermore, we discuss the current theory predictions and compare them to the expectations from future ATLAS analyses in this channel.