ICHEP 2024

NLO QCD predictions for off-shell tt¯W production in association with a light jet at the LHC

18 Jul 2024, 17:36

18m

Club E

Parallel session talk 04. Top Quark and Electroweak Physics Top Quark and Electroweak Physics

Speaker

Minos Reinartz (RWTH Aachen University)

Description

We will present the state-of-the-art full off-shell NLO QCD results for the $pp\to t\overline{t}{W}^{+}j+X$ process. The multi-lepton top-quark decay channel at the LHC with $\sqrt{s}=13$ TeV will be analysed. In our calculation off-shell top quarks and gauge bosons are described by Breit-Wigner propagators. Furthermore, double-, single- as well as non-resonant top-quark contributions along with all interference effects are consistently incorporated already at the matrix element level. We will present the results at the integrated and differential cross-section level for various renormalisation and factorisation scale settings as well as different PDF sets. Lastly, we will investigate the effects of the additional jet activity in the $pp\to t\overline{t}{W}^{+}+X$ process by comparing the normalised differential cross-section distributions for $pp\to e^{+}{\nu }_e{\mu }^{-}{\overline{\nu }}_{\mu }{\tau }^{+}{\nu }_{\tau }b\overline{b}j+X$ and $pp\to e^{+}{\nu }_e{\mu }^{-}{\overline{\nu }}_{\mu }{\tau }^{+}{\nu }_{\tau }b\overline{b}+X$.

Presentation materials

NLO QCD predictions for off-shell ttW production in association with a light jet at LHC.pdf