We report on a detailed investigation of the next-to-leading order (NLO) QCD corrections to Wγ+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 WWγ 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.
@article{arxiv.1010.1291,
title = {Precise predictions for (non-standard) W+photon+jet production},
author = {Francisco Campanario and Christoph Englert and Michael Spannowsky},
journal= {arXiv preprint arXiv:1010.1291},
year = {2011}
}