The measurement of hadronic activity recoiling against W and Z vector bosons
provides an important test of perturbative QCD, as well as a method of
searching for new physics in a model independent fashion. We present a study of
the cross-section ratio for the production of W and Z gauge bosons in
association with exactly one jet Rjet = {\sigma}(W + 1jet)/{\sigma}(Z + 1jet),
in pp collisions at \surds = 7 TeV. The study is performed in the electron and
muon channels with data collected with the ATLAS detector at the LHC. The ratio
Rjet is studied as a function of the cumulative transverse momentum
distribution of the jet. This result can be compared to NLO pQCD calculations
and the prediction from LO matrix element + parton shower generators.Comment: 8 pages, 4 figures, conference proceedings for DPF 201