Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-10-06
Phys.Rev.D83:074009,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages, 14 figures, 2 tables, published version
Scientific paper
10.1103/PhysRevD.83.074009
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.
Campanario Francisco
Englert Christoph
Spannowsky Michael
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