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Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 19: Top-Quarks: Produktion II

T 19.6: Talk

Monday, March 19, 2018, 17:15–17:30, Z6 - SR 2.011

Preliminary studies on top quark+Higgs boson production through flavour-changing neutral currents — •Nicolas Lang, Wolfgang Wagner, Geoffrey Gilles, and Arunika Sahu — Bergische Universität Wuppertal

Various theories of new physics and extensions of the standard model predict the existence of flavour-changing neutral currents (FCNC), which are prohibited by the standard model on tree level and strongly suppressed on 1-loop level. Thus the observation of a process involving FCNC would hint at new physics. Preliminary studies investigate single top quark and associated Higgs boson production from a light quark and a gluon through FCNC. More specifically, the Hb b decay channel is examined. B-tagging in conjunction with multivariate techniques aid in the separation of the backgrounds, most notably t t and tt+bb production.

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