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arXiv · 2410.12629

$t\bar{t}t\bar{t}$: NLO QCD corrections in production and decays for the $4\ell$ channel

Nikolaos Dimitrakopoulos
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Abstract

We briefly summarise the results for the four top-quark production process in the 4$\ell$ decay channel at NLO accuracy in perturbative QCD. We employ the narrow-width approximation for the treatment of the unstable particles, preserving spin correlations to NLO accuracy throughout our computations. The NLO QCD corrections are applied to both the production and decays of the four tops. We investigate the overall size of the NLO QCD corrections and the impact of neglecting higher-order effects in top-quark decays.

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Nikolaos Dimitrakopoulos. 2024-10-16. $t\bar{t}t\bar{t}$: NLO QCD corrections in production and decays for the $4\ell$ channel. https://arxiv.org/abs/2410.12629

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