QCD CORRECTIONS TO HADRONIC W-GAMMA PRODUCTION WITH NONSTANDARD WW-GAMMA COUPLINGS

Citation
U. Baur et al., QCD CORRECTIONS TO HADRONIC W-GAMMA PRODUCTION WITH NONSTANDARD WW-GAMMA COUPLINGS, Physical review. D. Particles and fields, 48(11), 1993, pp. 5140-5161
Citations number
111
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
48
Issue
11
Year of publication
1993
Pages
5140 - 5161
Database
ISI
SICI code
0556-2821(1993)48:11<5140:QCTHWP>2.0.ZU;2-R
Abstract
The process pp(-)-->W(+/-)gamma+X-->l(+/-)nu gamma+X is calculated to O(alpha(s) for general CP-conserving WW gamma couplings. At the Fermil ab Tevatron center-of-mass energy, the QCD corrections to W gamma prod uction are modest, and the Born and inclusive O(alpha(s)) cross sectio ns have similar sensitivities to the effects of anomalous couplings. A t supercollider energies, the inclusive QCD corrections are large at h igh photon transverse momenta, reducing the sensitivity to nonstandard WW gamma couplings by up to a factor 2. The size of the QCD correctio ns can be reduced significantly, and a large fraction of the sensitivi ty lost can be regained, if a jet veto is imposed.