Electroweak boson production with jets at CMS

The differential cross sections measurement for a W/Z boson produced in association with jets is presented. The measurement is based on 13 TeV proton-proton collision data corresponding to an integrated luminosity of 2.2 fb$^{-1}$, recorded by the Compact Muon Solenoid (CMS) detector at the LHC during run II in 2015. The cross sections are measured as functions of jet multiplicity, jet transverse momentum (p$_{T}$), jet rapidity, and the scalar p$_{T}$ sum of the jets (H$_{T}$). The measured cross sections are compared with predictions, which include multileg leading-order (LO) and next-to-LO (NLO) matrix element calculations interfaced with parton showers, as well as a next-to-next-to-LO (NNLO) calculation for the W/Z boson and one jet production. A measurement of the electroweak (EW) Z boson production in association with two jets, based on data collected by CMS in 2016 corresponding to an integrated luminosity of 35.9 fb$^{-1}$, is also presented. The measured cross section, in a kinematic region defined by invariant masses m$_{ll}$ $\textgreater$ 50 GeV, m$_{jj}$ $\textgreater$ 120 GeV, and transverse momenta p$_{T}$$_{j}$ $\textgreater$ 25 GeV, is $\sigma_{EW}$($ll$jj) = 552 $\pm$ 19 (stat) $\pm$ 55 (syst) fb, and in agreement with LO standard model (SM) predictions.