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We report in this work the production of $W^+W^-$ pairs gauge bosonsassociated with 0, 1 and 2 jets in proton-proton collisions at LHC with anenergy of 14 TeV in the center of mass. These processes are produced atleading-order (LO) and next-to-leading-order (NLO) with QCD corrections in thestandard model, using MadGraph5@aMC. For a realistic description of theprocesses, we match the hard scattering processes with Pythia8 parton showeringand hadronization. The obtained events are run through the fast detectorsimulation, Delphes, which serves to accurately model the ATLAS and CMSdetectors and the final state reconstructions that are performed. We analyzethe total cross sections according on two cuts in jet transverse momentum p T,j> 20 GeV and p T,j > 100 GeV. We describe the important numerical aspects ofour calculations by presenting transverse momentum and rapidity distributionsat partonic fixed order and at parton shower for both W and the $W^+W^-$ pair.

The production of gauge bosons pairs $W^+W^-$ associated with 0, 1 and 2 jets in proton-proton collisions at LHC