Measurement of Differential Cross Sections for Z Boson Production in Association with Jets in Proton-Proton Collisions at √s = 13 TeV
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Sirunyan2018_Article_MeasurementOfDifferentialCross.pdf
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Author(s)
CMS Collaboration
Abercrombie, Daniel Robert
Allen, Brandon Leigh
Azzolini, Virginia
Barbieri, Riccardo
Baty, Austin Alan
Bauer, Gerry P
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Date Issued
November 2018
Journal
European Physical Journal C: Particles and Fields
Publisher
Springer-Verlag
Citation
Sirunyan, A. M. et al. “Measurement of Differential Cross Sections for Z Boson Production in Association with Jets in Proton-Proton Collisions at √s = 13 TeV.” The European Physical Journal C 78, 11 (November 2018) © 2018 CERN for the benefit of the CMS collaboration
Version
Final published version
Abstract
The production of a Z boson, decaying to two charged leptons, in association with jets in proton-proton collisions at a centre-of-mass energy of 13 TeV is measured. Data recorded with the CMS detector at the LHC are used that correspond to an integrated luminosity of 2.19fb⁻¹. The cross section is measured as a function of the jet multiplicity and its dependence on the transverse momentum of the Z boson, the jet kinematic variables (transverse momentum and rapidity), the scalar sum of the jet momenta, which quantifies the hadronic activity, and the balance in transverse momentum between the reconstructed jet recoil and the Z boson. The measurements are compared with predictions from four different calculations. The first two merge matrix elements with different parton multiplicities in the final state and parton showering, one of which includes one-loop corrections. The third is a fixed-order calculation with next-to-next-to-leading order accuracy for the process with a Z boson and one parton in the final state. The fourth combines the fully differential next-to-next-to-leading order calculation of the process with no parton in the final state with next-to-next-to-leading logarithm resummation and parton showering. Keywords: CMS; Physics; Standard model; Cross section; Z boson; Jets; Proton; LHC
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-018-6373-0
