The production of jets of particles, including heavy-flavor, in association with a W or Z boson, provides an important test of perturbative quantum chromodynamics, and provides information on parton densities. Such events also constitute a non-negligible background for studies of the Higgs boson and searches for new phenomena. The cross sections, differential in several kinematics variables, have been measured up to high jet multiplicities and compared to new state of the art theoretical predictions including higher order QCD corrections. Non-perturbative corrections to these calculations, including effects such as multiple parton interactions, are checked using dedicated ATLAS measurements.
Video in CDS
M. Mangano, C. Lourenco, G. Unal......................... Tea and Coffee will be served at 10h30