Radiative four-fermion processes at LEP2

Citation
G. Montagna et al., Radiative four-fermion processes at LEP2, EUR PHY J C, 21(2), 2001, pp. 291-301
Citations number
57
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
14346044 → ACNP
Volume
21
Issue
2
Year of publication
2001
Pages
291 - 301
Database
ISI
SICI code
1434-6044(200106)21:2<291:RFPAL>2.0.ZU;2-T
Abstract
The production of four fermions plus a visible photon in electron-positron collisions is analyzed, with particular emphasis on the LEP2 energy range. The study is based on the calculation of exact matrix elements, including t he effect of fermion masses. In the light of the present measurements perfo rmed at LEP, triple and quartic anomalous gauge couplings are taken into ac count. Due to the presence of a visible photon in the final state, particul ar attention is paid to the treatment of higher-order QED corrections. Expl icit results for integrated cross sections and differential distributions a re shown and commented on. The features of the Monte Carlo program WRAP. us ed to perform the calculation and available for experimental analysis, are described.