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arXiv · 2302.00771

QCD NLO corrections to $t\bar{t}Z$ production at the LHC including leptonic decays

Laura Reina
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Abstract

The calculation of $t\bar{t}Z$ production including leptonic decays of both $Z$ boson and top quarks via a partially or fully off-shell calculation represents a definite step forward towards a more accurate description of events whose signatures originate from $t\bar{t}Z$ production. In this talk we review two studies that represent the state of the art of theoretical modeling of $t\bar{t}Z$ production by either performing the NLO QCD calculation of the fully decayed $pp\rightarrow e^+\nu_e\mu^-\bar{\nu}_\mu b\bar{b}\tau^+\tau^-$ process (see Ref. [1]) or matching the NLO QCD calculation of $pp\rightarrow t\bar{t}\ell^+\ell^-$ to parton shower, including top-quark decays with approximate LO spin correlation (see Ref.[2]).

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Laura Reina. 2023-02-01. QCD NLO corrections to $t\bar{t}Z$ production at the LHC including leptonic decays. https://arxiv.org/abs/2302.00771

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