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

Collaboration
Oct 24, 2022
25 pages
Published in:
  • Eur.Phys.J.C 83 (2023) 8, 742
  • Published: Aug 22, 2023
e-Print:
Report number:
  • CMS-SMP-21-006,
  • CERN-EP-2022-144
Experiments:

Citations per year

202220232024014
Abstract: (Springer)
Multijet events at large transverse momentum (pTp_{\textrm{T}}) are measured at s=13TeV\sqrt{s}=13\,\text {Te\hspace{-.08em}V} using data recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 36.3fb136.3{\,\text {fb}^{-1}} . The multiplicity of jets with pT>50GeVp_{\textrm{T}} >50\,\text {Ge\hspace{-.08em}V} that are produced in association with a high-pTp_{\textrm{T}} dijet system is measured in various ranges of the pTp_{\textrm{T}} of the jet with the highest transverse momentum and as a function of the azimuthal angle difference Δϕ1,2\varDelta \phi _{1,2} between the two highest pTp_{\textrm{T}} jets in the dijet system. The differential production cross sections are measured as a function of the transverse momenta of the four highest pTp_{\textrm{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.
Note:
  • p p: colliding beams
  • jet: multiplicity
  • parton: showers
  • jet: multiple production
  • perturbation theory: higher-order
  • higher-order: 1
  • jet: transverse momentum
  • transverse momentum: high
  • parton: density
  • p p: scattering