  We present a study of higher order QCD corrections beyond NLO to processes
with electroweak vector bosons. We focus on the regions of high transverse
momenta of commonly used differential distributions. We employ the LoopSim
method, combined with NLO packages, VBFNLO and MCFM, to merge the NLO samples
with different multiplicities, in order to compute the dominant part of the
NNLO corrections at high pT. We find that these corrections are indeed
substantial, in the 30%-100% range, for a number of experimentally relevant
observables. For other observables, they lead to significant reduction of scale
uncertainties.
