Status of diboson production in NNLO QCD
  We present results from the first fully differential next-to-next-to leading order NNLO QCD computation of ZZ production, including off-shell effects, the leptonic decay and non-resonant contributions. We compare theoretical predictions to fiducial cross sections and distributions measured by ATLAS and CMS at 8 TeV and also perform a first comparison with early ATLAS measurements at 13 TeV. 
Massimiliano Grazzini, Stefan Kallweit, Dirk Rathlev
hep-ph