  We present a calculation of the next-to-leading order QCD corrections to
slepton pair production in association with a jet at the LHC together with
their implementation in the POWHEG BOX. For the simulation of parton-shower
effects and the decays of the sleptons we employ the multi-purpose Monte-Carlo
program PYTHIA. We discuss the impact of next-to-leading order QCD corrections
on experimentally accessible distributions and illustrate how the parton shower
can modify observables that are sensitive to QCD radiation effects. Having full
control on the hard jet in the process, we provide precise predictions also for
monojet analyses.
