Journal of High Energy Physics

, 2012:99 | Cite as

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

  • Rikkert Frederix
  • Stefano Frixione
  • Valentin Hirschi
  • Fabio Maltoni
  • Roberto Pittau
  • Paolo Torrielli
Open Access
Article

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 \( \mathcal{O}\left( {{\alpha_s}} \right) \) result and the \( \mathcal{O}\left( {\alpha_s^2} \right) \) 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.

Keywords

NLO Computations Hadronic Colliders QCD Standard Model 

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Copyright information

© SISSA, Trieste, Italy 2012

Authors and Affiliations

  • Rikkert Frederix
    • 1
  • Stefano Frixione
    • 2
    • 3
  • Valentin Hirschi
    • 3
  • Fabio Maltoni
    • 4
  • Roberto Pittau
    • 5
  • Paolo Torrielli
    • 3
  1. 1.Institut für Theoretische PhysikUniversität ZürichZürichSwitzerland
  2. 2.PH Department, TH UnitCERNGeneva 23Switzerland
  3. 3.ITPP, EPFLLausanneSwitzerland
  4. 4.Centre for Cosmology, Particle Physics and Phenomenology (CP3)Université catholique de LouvainLouvain-la-NeuveBelgium
  5. 5.Departamento de Física Teórica y del Cosmos y CAFPEUniversidad de GranadaGranadaSpain

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