A study of multi-jet production in association with an electroweak vector boson
R. Frederix (Physik Department T31, Technische Universitat Munchen, James-Franck-Str. 1, Garching, D-85748, Germany); S. Frixione (INFN, Sezione di Genova, Via Dodecaneso 33, Genoa, I-16146, Italy); A. Papaefstathiou (PH Department, TH Unit, CERN, Geneva 23, CH-1211, Switzerland); S. Prestel (SLAC, National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025-7090, U.S.A.); P. Torrielli (Dipartimento di Fisica, Universita di Torino and INFN, Sezione di Torino, Via P. Giuria 1, Turin, I-10125, Italy)
We consider the production of a single Z or W boson in association with jets at the LHC. We compute the corresponding cross sections by matching NLO QCD predictions with the H erwig ++ and P ythia 8 parton showers, and by merging all of the underlying matrix elements with up to two light partons at the Born level. We compare our results with several 7-TeV measurements by the ATLAS and CMS collaborations, and overall we find a good agreement between theory and data.
