Measurement of double-parton scattering in inclusive production of four jets with low transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Abstract

A measurement of inclusive four-jet production in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The transverse momenta of jets within $|\eta |$ $<$ 4.7 reach down to 35, 30, 25, and 20 GeV for the first-, second-, third-, and fourth-leading jet, respectively. Differential cross sections are measured as functions of the jet transverse momentum, jet pseudorapidity, and several other observables that describe the angular correlations between the jets. The measured distributions show sensitivity to different aspects of the underlying event, parton shower, and matrix element calculations. In particular, the interplay between angular correlations caused by parton shower and double-parton scattering contributions is shown to be important. The double-parton scattering contribution is extracted by means of a template fit to the data, using distributions for single-parton scattering obtained from Monte Carlo event generators and a double-parton scattering distribution constructed from inclusive single-jet events in data. The effective double-parton scattering cross section is calculated and discussed in view of previous measurements and of its dependence on the models used to describe the single-parton scattering background.

arXiv commentReplaced 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-20-007 (CMS Public Pages)

References in corpus (57)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• An Introduction to PYTHIA 8.2
• FastJet user manual
• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Herwig++ Physics and Manual
• Parton distributions from high-precision collider data
• Parton distributions in the LHC era: MMHT 2014 PDFs
• Herwig 7.0 / Herwig++ 3.0 Release Note
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Particle-flow reconstruction and global event description with the CMS detector
• Tuning PYTHIA 8.1: the Monash 2013 Tune
• The CMS trigger system
• Event generator tunes obtained from underlying event and multiparton scattering measurements
• Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV
• Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements
• High-Energy Factorization and Small-X Deep Inelastic Scattering Beyond Leading Order
• Interleaved Parton Showers and Tuning Prospects
• Performance of the CMS Level-1 trigger in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Precision luminosity measurement in proton-proton collisions at $\sqrt{s}=$ 13 TeV in 2015 and 2016 at CMS
• Jet pair production in POWHEG
• Measurement of hard double-parton interactions in W->lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector
• Elements of a theory for multiparton interactions in QCD
• The CCFM Monte Carlo generator CASCADE 2.2.0
• Double parton interactions in photon+3 jet events in ppbar collisions sqrt{s}=1.96 TeV
• TUnfold: an algorithm for correcting migration effects in high energy physics
• Study of double parton scattering using W + 2-jet events in proton-proton collisions at sqrt(s) = 7 TeV
• Measurement and QCD analysis of double-differential inclusive jet cross-sections in pp collisions at sqrt(s) = 8 TeV and ratios to 2.76 and 7 TeV
• Collinear and TMD parton densities from fits to precision DIS measurements in the parton branching method
• Forward Jet Production at the Large Hadron Collider
• Observation and studies of double J/psi production at the Tevatron
• Vincia for Hadron Colliders
• Measurement of the ratio of inclusive jet cross sections using the anti-kt algorithm with radius parameters R = 0.5 and 0.7 in pp collisions at sqrt(s) = 7 TeV
• Measurement of the double-differential inclusive jet cross section in proton-proton collisions at sqrt(s) = 13 TeV
• Measurement of the $J/\psi$ pair production cross-section in $pp$ collisions at $\sqrt{s}=13\mathrm{TeV}$
• Characteristics and Estimates of Double Parton Scattering at the Large Hadron Collider
• Production of associated ${\rm Y}$ and open charm hadrons in $pp$ collisions at $\sqrt{s}=7$ and $8$TeV via double parton scattering
• Double parton interactions in photon + 3 jet and photon + b/c jet + 2 jet events in ppbar collisions at sqrt{s}=1.96 TeV
• Data Unfolding Methods in High Energy Physics
• Study of hard double-parton scattering in four-jet events in $pp$ collisions at $\sqrt{s}=7$ TeV with the ATLAS experiment
• Measurement of four-jet production in proton-proton collisions at sqrt(s) = 7 TeV
• Study of double parton interactions in diphoton + dijet events in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
• Testing the Scale Dependence of the Scale Factor in Double Dijet Production at the LHC
• Calculations with off-shell matrix elements, TMD parton densities and TMD parton showers
• Development and validation of HERWIG 7 tunes from CMS underlying-event measurements
• Observation of associated production of a $Z$ boson with a $D$ meson in the~forward region
• Constraints on the double-parton scattering cross section from same-sign W boson pair production in proton-proton collisions at $\sqrt{s}=$ 8 TeV
• Evidence for WW production from double-parton interactions in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• QCD and Jets at Hadron Colliders
• Three-jet production in POWHEG
• Measurement of four-jet differential cross sections in $\sqrt{s}=8$ TeV proton-proton collisions using the ATLAS detector
• Search for optimal conditions for exploring double-parton scattering in four-jet production: $k_t$-factorization approach
• Study of Z bosons plus jets events using variables sensitive to double-parton scattering in pp collisions at 13 TeV
• Studies of inclusive four-jet production with two b-tagged jets in proton-proton collisions at 7 TeV

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• Observation of same-sign WW production from double parton scattering in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Evolution and interpolation of double parton distributions using Chebyshev grids
• Observation of double J/$\psi$ meson production in pPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV
• Double parton distributions of the proton from basis light-front quantization
• Exploring high-purity multi-parton scattering at hadron colliders
• Measuring $|V_{ts}|$ directly using strange-quark tagging at the LHC
• Hot Spot model of Nucleon and Double Parton Scattering
• Numerical Study of MRW-Type Unintegrated Double Parton Distribution Functions from Non-Factorized DPDFs