Hadroproduction of four top quarks in the POWHEG BOX

Hadroproduction of four top quarks in the POWHEG BOX

Authors: Tomáš Ježo, Manfred Kraus

Abstract: We present a new Monte Carlo event generator for the hadronic production of four top quarks in the POWHEG BOX framework. Besides the dominant next-to-leading order QCD corrections at \(\mathcal{O}(\alpha_s^5)\) we also include all subleading electroweak productions channels at leading-order accuracy. We validate our theoretical predictions by comparing to parton-shower matched predictions obtained within the MC@NLO framework for stable top quarks. Furthermore, we investigate in detail the various sources of theoretical uncertainties. Finally, we investigate a single lepton plus jets signature to study for the first time the impact of the electroweak production modes as well as spin-correlation effects at the fiducial level.

(Ježo & Kraus, 2022)

References

  1. Phys. Rev. D
    ATLAS_eventdisplay.jpg
    Hadroproduction of four top quarks in the powheg box
    Tomáš Ježo, and Manfred Kraus
    Phys. Rev. D, Aug 2022



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