Measurement of dijet cross sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector
arXiv:1312.3524 · doi:10.1007/JHEP05(2014)059
Abstract
Double-differential dijet cross sections measured in pp collisions at the LHC with a 7 TeV centre-of-mass energy are presented as functions of dijet mass and rapidity separation of the two highest-pT jets. These measurements are obtained using data corresponding to an integrated luminosity of 4.5/fb, recorded by the ATLAS detector in 2011. The data are corrected for detector effects so that cross sections are presented at the particle level. Cross sections are measured up to 5 TeV dijet mass using jets reconstructed with the anti-kt algorithm for values of the jet radius parameter of 0.4 and 0.6. The cross sections are compared with next-to-leading-order perturbative QCD calculations by NLOJET++ corrected to account for non-perturbative effects. Comparisons with POWHEG predictions, using a next-to-leading-order matrix element calculation interfaced to a parton-shower Monte Carlo simulation, are also shown. Electroweak effects are accounted for in both cases. The quantitative comparison of data and theoretical predictions obtained using various parameterizations of the parton distribution functions is performed using a frequentist method. An example setting a lower limit on the compositeness scale for a model of contact interactions is presented, showing that the unfolded results can be used to constrain contributions to dijet production beyond that predicted by the Standard Model.
53 pages plus author list (75 pages total), 14 figures, 15 tables, submitted to JHEP. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2012-03/ Revision matches published version
References in corpus (14)
- PYTHIA 6.4 Physics and Manual
- Parton distributions for the LHC
- Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
- New parton distributions for collider physics
- Herwig++ Physics and Manual
- Interleaved Parton Showers and Tuning Prospects
- Colour reconnections in Herwig++
- Simulation of multiple partonic interactions in Herwig++
- Standard Model Handles and Candles Working Group: Tools and Jets Summary Report
- Measurement of the dijet invariant mass cross section in proton anti-proton collisions at sqrt{s} = 1.96 TeV
- MINT: a Computer Program for Adaptive Monte Carlo Integration and Generation of Unweighted Distributions
- Next-to-leading QCD effect to the quark compositeness search at the LHC
- Combining Triggers in HEP Data Analysis
- Generation cuts and Born suppression in POWHEG
Cited by in corpus (39)
- Parton distributions for the LHC Run II
- Performance of missing transverse momentum reconstruction in proton-proton collisions at 13 TeV using the CMS detector
- The Structure of the Proton in the LHC Precision Era
- Search for narrow resonances decaying to dijets in proton-proton collisions at sqrt(s) = 13 TeV
- Identification of heavy, energetic, hadronically decaying particles using machine-learning techniques
- The PDF4LHC report on PDFs and LHC data: Results from Run I and preparation for Run II
- Precise predictions for dijet production at the LHC
- Measurement of the inclusive 3-jet production differential cross section in proton-proton collisions at 7 TeV and determination of the strong coupling constant in the TeV range
- aMCfast: automation of fast NLO computations for PDF fits
- Reinterpretation of LHC Results for New Physics: Status and Recommendations after Run 2
- Measurement of inclusive jet and dijet cross-sections in proton-proton collisions at TeV with the ATLAS detector
- Measurements of jet vetoes and azimuthal decorrelations in dijet events produced in collisions at = 7 TeV using the ATLAS detector
- Measurement of the inclusive jet cross-sections in proton--proton collisions at 8 TeV with the ATLAS detector
- Bayesian Approach to Inverse Problems: an Application to NNPDF Closure Testing
- Precision Probes of QCD at High Energies
- Measurement of transverse energy-energy correlations in multi-jet events in collisions at TeV using the ATLAS detector and determination of the strong coupling constant
- The performance of the jet trigger for the ATLAS detector during 2011 data taking
- Measurement of the triple-differential dijet cross section in proton-proton collisions at sqrt(s) = 8 TeV and constraints on parton distribution functions
- Testing new physics models with global comparisons to collider measurements: the Contur toolkit
- Measurement of three-jet production cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector
- Measurement of detector-corrected observables sensitive to the anomalous production of events with jets and large missing transverse momentum in collisions at TeV using the ATLAS detector
- A measurement of the ratio of the production cross sections for W and Z bosons in association with jets with the ATLAS detector
- QCD and Jets at Hadron Colliders
- Measurement of four-jet differential cross sections in TeV proton-proton collisions using the ATLAS detector
- New Physics from High Energy Tops
- Can the diphoton enhancement at 750 GeV be due to a neutral technipion?
- Future tests of parton distributions
- Precision QCD Physics at the LHC
- Measurement of inclusive very forward jet cross sections in proton-lead collisions at 5.02 TeV
- Hard color-singlet exchange in dijet events in proton-proton collisions at 13 TeV
- Review of single vector boson production in pp collisions at TeV
- Direct search for heavy gauge bosons at the LHC in the nonuniversal SU(2) model
- Powheg-Pythia matching scheme effects in NLO simulation of dijet events
- Jet cross sections at the LHC with NNLOJET
- Studies of Quantum Chromodynamics at the LHC
- Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at = 7 TeV
- Production of γγ+ 2jets from double parton scattering in proton-proton collisions at the LHC
- A composite Froggatt-Nielsen model of flavor
- Jet and photon physics