Chatrchyan, S.Işıldak, Bora2014-11-162014-11-162013-05-230370-2693http://hdl.handle.net/10679/566https://doi.org/10.1016/j.physletb.2013.04.025Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at root s = 7 TeV correspond to an integrated luminosity of 5.0 fb(-1). The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models.enginfo:eu-repo/semantics/restrictedAccessArticle7224-523826100031963800000310.1016/j.physletb.2013.04.025