Quartic anomalous couplings at LEP
High Energy Physics - Phenomenology
2009-11-07 v2 High Energy Physics - Experiment
Abstract
The search for quartic anomalous gauge couplings at LEP requires appropriate predictions for the radiative processes e+ e- \to \nu\bar\nu \gamma\gamma, e+ e- \to q\bar{q}\gamma\gamma and e+ e- \to 4 fermions+\gamma. Matrix elements are exactly computed at the tree level, and the effects of anomalous couplings and initial-state radiation are included. Comparisons with results and approximations existing in the literature are shown and commented. Improved versions of the event generators NUNUGPV and WRAP are made available for experimental analysis.
Cite
@article{arxiv.hep-ph/0105120,
title = {Quartic anomalous couplings at LEP},
author = {G. Montagna and M. Moretti and O. Nicrosini and M. Osmo and F. Piccinini},
journal= {arXiv preprint arXiv:hep-ph/0105120},
year = {2009}
}
Comments
LaTeX, 12 pages, 5 figures. Minor changes, version to appear in Phys. Lett. B