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arXiv · 1110.4738

Four-lepton production at hadron colliders: aMC@NLO predictions with theoretical uncertainties

Rikkert Frederix·Stefano Frixione·Valentin Hirschi·Fabio Maltoni·Roberto Pittau·Paolo Torrielli
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Abstract

We use aMC@NLO to study the production of four charged leptons at the LHC, performing parton showers with both HERWIG and Pythia6. Our underlying matrix element calculation features the full next-to-leading order $O(α_S)$ result and the $O(α_S^2)$ contribution of the $gg$ channel, and it includes all off-shell, spin-correlation, virtual-photon-exchange, and interference effects. We present several key distributions together with the corresponding theoretical uncertainties. These are obtained through a process-independent technique that allows aMC@NLO to compute scale and PDF uncertainties in a fully automated way and at no extra CPU-time cost

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Rikkert Frederix, Stefano Frixione, Valentin Hirschi, Fabio Maltoni, Roberto Pittau, Paolo Torrielli. 2011-10-21. Four-lepton production at hadron colliders: aMC@NLO predictions with theoretical uncertainties. https://doi.org/10.1007/jhep02(2012)099

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