WZ and W+jets production at large transverse momenta beyond NLO

Abstract

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.

4 pages, 3 figures; Talk given at 48th Rencontres de Moriond: QCD and High Energy Interactions, La Thuile, Italy, March 9-16, 2013; v2: reference added