Drell-Yan lepton pair production at NNLO QCD with parton showers
  We present a simple approach to combine NNLO QCD calculations and parton showers, based on the UNLOPS technique. We apply the method to the computation of Drell-Yan lepton-pair production at the Large Hadron Collider. We comment on possible improvements and intrinsic uncertainties. 
Stefan Hoeche, Ye Li, Stefan Prestel
hep-ph