Azimuthal correlations for inclusive 2-jet, 3-jet, and 4-jet events in pp collisions at √s= 13 TeV
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10052_2018_Article_6033.pdf
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Author(s)
Sirunyan, A. M
Tumasyan, A.
Adam, W.
Ambrogi, F.
Asilar, E.
Bergauer, T.
Brandstetter, J.
Brondolin, E.
Dragicevic, M.
Erö, J.
Date Issued
July 2018
Journal
The European Physical Journal C
Publisher
Springer Berlin Heidelberg
Citation
CMS Collaboration, et al. “Azimuthal Correlations for Inclusive 2-Jet, 3-Jet, and 4-Jet Events in Pp Collisions at √s = 13TeV.” The European Physical Journal C, vol. 78, no. 7, July 2018.
Version
Final published version
Abstract
Azimuthal correlations between the two jets with the largest transverse momenta p[subscript T] in inclusive 2-, 3-, and 4-jet events are presented for several regions of the leading jet p[subscript T] up to 4 TeV. For 3- and 4-jet scenarios, measurements of the minimum azimuthal angles between any two of the three or four leading p[subscript T] jets are also presented. The analysis is based on data from proton–proton collisions collected by the
CMS Collaboration at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb[superscript −1]. Calculations based on leading-order matrix elements supplemented with parton showering and hadronization do not fully describe the data, so next-to-leading-order calculations matched with parton shower and hadronization models are
needed to better describe the measured distributions. Furthermore,
we show that azimuthal jet correlations are sensitive to details of the parton showering, hadronization, and multiparton interactions. A next-to-leading-order calculation matched with parton showers in the MC@NLO method, as
implemented in herwig 7, gives a better overall description of the measurements than the powheg method.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-018-6033-4
