W and Z production in association with light and heavy-flavour jets at the LHC and the Tevatron

Recentresults on W and Z production in association with light and heavy-flavour jets at theTevatron and the LHC are reviewed. The integrated luminosity which is used for physics analysis by each of the two Tevatron experiments corresponds to a maximum of ≈10 fb−1, at an energy in the centre of mass of 1.96 TeV. The LHC analyses use the data sample collected in 2011 which correspond to an integrated luminosity of ≈5 fb−1, at an energy in the centre of mass of 7 TeV. Events with W and Z bosons accompanied by jets represent one of the main background samples in the analyses of rare Standard Model processes and in searches for New Physics. Furthermore these measurements provide a test of perturbative QCD calculations and probe the strange and heavy flavour content of the proton.