Journal
PHYSICAL REVIEW D
Volume 105, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.105.114024
Keywords
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Funding
- DFG [396021762-TRR 257, 273811115-SFB 1225 ?]
- U.S. Department of Energy [DE-SC0010102]
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In this study, a new Monte Carlo event generator for the hadronic production of four top quarks is presented. It includes subleading electroweak production channels and investigates various sources of theoretical uncertainties.
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 O(alpha(5)(s)) 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.
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