Details

Autor(en) / Beteiligte

• Barros, Maura
• Castro, Nuno Filipe
• Erdmann, Johannes
• Geßner, Gregor
• Kröninger, Kevin
• La Cagnina, Salvatore
• Peixoto, Ana

Titel

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

Ist Teil von

• European physical journal plus, 2020-03, Vol.135 (3), p.339, Article 339

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.