2009/07/30 by P. J. Bell · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-009-1129-5
published as Eur.Phys.J.C64:25-33,2009 · 9 pages, 7 figures
arxiv created 2009/07/30 · openalex publication_date 2009/09/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
We report a study of the process pp→l±νγγ at CERN’s Large Hadron Collider, using a leading order partonic-level event generator interfaced to the Pythia program for showering and hadronisation and a with a generic detector simulation. The process is sensitive to possible anomalous quartic gauge boson couplings of the form WWγγ. It is shown how unitarity-safe limits may be placed on these anomalous couplings by applying a binned maximum likelihood fit to the distribution of the two-photon invariant mass, M γγ, below a cutoff of ∼1 TeV. Assuming 30 fb−1 of integrated luminosity, the expected limits are two orders of magnitude tighter than those available from LEP. It is also demonstrated how the Standard Model radiation zero feature of the q q′→\mathrm W\upgamma\upgamma process may be observed in the difference between the two-photon and charged lepton pseudo-rapidities.