Speakers
Malgorzata Maria Worek
(Rheinisch Westfaelische Tech. Hoch. (DE))
Nikolaos Dimitrakopoulos
Description
Reference: https://arxiv.org/abs/2401.10678
Triggered by the observation of four top-quark production at the LHC by the ATLAS and CMS collaboration we report on the calculation of the next-to-leading order QCD corrections to the Standard Model process pp→tt¯tt¯ in the 4ℓ top-quark decay channel. We take into account higher-order QCD effects in both the production and decays of the four top quarks. The latter effects are treated in the narrow width approximation, which preserves top-quark spin correlations throughout the calculation. We present results for two selected renormalisation and factorisation scale settings and three different PDF sets.
