Authors: Barros, Maura
Castro, Nuno Filipe
Erdmann, Johannes
Geßner, Gregor
Kröninger, Kevin
La Cagnina, Salvatore
Peixoto, Ana
Title: Study of interference effects in the search for flavour-changing neutral current interactions involving the top quark and a photon or a Z boson at the LHC
Language (ISO): en
Abstract: Flavour-changing neutral-current interactions of the top quark can be searched for in top-quark pair production with one top quark decaying to an up-type quark and a neutral boson, and they can be searched for in the single production of a top quark in association with such a boson. Both processes interfere if an additional up-type quark is produced in the case of single production. The impact of these interference effects on searches for flavour-changing neutral currents at the LHC is studied for the case where the neutral boson is a photon or a Z boson. Interference effects are found to be smaller than variations of the renormalisation and factorisation scales.
Subject Headings (RSWK): Quark <Physik>
Issue Date: 2020-03-30
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Appears in Collections:Experimentelle Physik IV

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