Measurements of jet multiplicity and jet transverse momentum in multijet events in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Abstract

Multijet events at large transverse momentum ($p_{\mathrm{T}}$) are measured at $\sqrt{s}$ = 13 TeV using data recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 36.3 fb${}^{-1}$. The multiplicity of jets with $p_{\mathrm{T}}$ $>$ 50 GeV that are produced in association with a high-$p_{\mathrm{T}}$ dijet system is measured in various ranges of the $p_{\mathrm{T}}$ of the jet with the highest transverse momentum and as a function of the azimuthal angle difference $\Delta {\varphi }_{1,2}$ between the two highest $p_{\mathrm{T}}$ jets in the dijet system. The differential production cross sections are measured as a function of the transverse momenta of the four highest $p_{\mathrm{T}}$ jets. The measurements are compared with leading and next-to-leading order matrix element calculations supplemented with simulations of parton shower, hadronization, and multiparton interactions. In addition, the measurements are compared with next-to-leading order matrix element calculations combined with transverse-momentum dependent parton densities and transverse-momentum dependent parton shower.

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-21-006 (CMS Public Pages)

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• Stairway to discovery: a report on the CMS programme of cross section measurements from millibarns to femtobarns
• Measurement of inclusive jet cross section and substructure in $p$$+$$p$ collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV