@article{3180715, title = "Measurement of the underlying event activity in inclusive Z boson production in proton-proton collisions at root s=13 TeV", author = "Sirunyan, A. M. and Tumasyan, A. and Adam, W. and Ambrogi, F. and and Asilar, E. and Bergauer, T. and Brandstetter, J. and Brondolin, E. and and Dragicevic, M. and Eroe, J. and Flechl, M. and Friedl, M. and and Fruehwirth, R. and Ghete, V. M. and Grossmann, J. and Hrubec, J. and and Jeitler, M. and Koenig, A. and Krammer, N. and Kraetschmer, I. and Liko, and D. and Madlener, T. and Mikulec, I. and Pree, E. and Rabady, D. and Rad, and N. and Rohringer, H. and Schieck, J. and Schoefbeck, R. and Spanring, M. and and Spitzbart, D. and Strauss, J. and Waltenberger, W. and Wittmann, J. and and Wulz, C. -E. and Zarucki, M. and Chekhovsky, V. and Mossolov, V. and and Gonzalez, J. Suarez and De Wolf, E. 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E. and and Sturdy, J. and Zaleski, S. and Brodski, M. and Buchanan, J. and and Caillol, C. and Dasu, S. and Dodd, L. and Duric, S. and Gomber, B. and and Grothe, M. and Herndon, M. and Herve, A. and Hussain, U. and Klabbers, and P. and Lanaro, A. and Levine, A. and Long, K. and Loveless, R. and and Pierro, G. A. and Polese, G. and Ruggles, T. and Savin, A. and Smith, N. and and Smith, W. H. and Taylor, D. and Woods, N. and CMS Collaboration", journal = "Journal of High Energy Physics", year = "2018", number = "7", publisher = "Springer-Verlag", issn = "1126-6708, 1029-8479", doi = "10.1007/JHEP07(2018)032", keywords = "Hadron-Hadron scattering (experiments); Minimum bias; Event-by-event fluctuation", abstract = "This paper presents a measurement of the underlying event activity in proton-proton collisions at a center-of-mass energy of 13TeV, performed using inclusive Z boson production events collected with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 2.1 fb(-1). The underlying event activity is quantified in terms of the charged particle multiplicity, as well as of the scalar sum of the charged particles' transverse momenta in different topological regions defined with respect to the Z boson direction. The distributions are unfolded to the stable particle level and compared with predictions from various Monte Carlo event generators, as well as with similar CDF and CMS measurements at center-of-mass energies of 1.96 and 7TeV respectively." }