Precise predictions for (non-standard) W+photon+jet production

Abstract

We report on a detailed investigation of the next-to-leading order (NLO) QCD corrections to $W\gamma$+jet production at the Tevatron and the LHC using a fully-flexible parton-level Monte Carlo program. We include the full leptonic decay of the $W$, taking into account all off-shell and finite width effects, as well as non-standard $WW\gamma$ couplings. We find particularly sizable corrections for the currently allowed parameter range of anomalous couplings imposed by LEP data. In total the NLO differential distributions reveal a substantial phase space dependence of the corrections, leaving considerable sensitivity to anomalous couplings beyond scale uncertainty at large momentum transfers in the anomalous vertex.

22 pages, 14 figures, 2 tables, published version

References in corpus (11)

• Event generation with SHERPA 1.1
• FeynRules - Feynman rules made easy
• VBFNLO: A parton level Monte Carlo for processes with electroweak bosons
• Automation of the Dipole Subtraction Method in MadGraph/MadEvent
• Next-to-leading order QCD corrections to W+Z and W-Z production via vector-boson fusion
• QCD corrections to hadronic WWZ production with leptonic decays
• NLO QCD corrections to WW+jet production at hadron colliders
• QCD corrections to charged triple vector boson production with leptonic decay
• Next-to-leading order predictions for WW + 1 jet distributions at the LHC
• First study of the radiation-amplitude zero in Wgamma production and limits on anomalous WWgamma couplings at sqrt(s)=1.96 TeV
• QCD Corrections to Vector-Boson Fusion Processes in Warped Higgsless Models