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Measurement of the inclusive production cross sections for forward jets and for dijet events with one forward and one central jet in pp collisions at sqrt(s) = 7 TeV
High Energy Physics - Experiment · Submitted 3 Feb 2012
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim The single-jet inclusive forward jet spectrum is well described by all models, but not all predictions are consistent with the spectra observed for the forward-central dijet events.
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The abstract, sentence by sentence
The inclusive production cross sections for forward jets, as well for jets in dijet events with at least one jet emitted at central and the other at forward pseudorapidities, are measured in the range of transverse momenta pt = 35-150 GeV/c in proton-proton collisions at sqrt(s) = 7 TeV by the CMS experiment at the LHC. Forward jets are measured within pseudorapidities 3.2<|eta|<4.7, and central jets within the |eta|<2.8 range. The double differential cross sections with respect to pt and eta are compared to predictions from three approaches in perturbative quantum chromodynamics: (i) next-to-leading-order calculations obtained with and without matching to parton-shower Monte Carlo simulations, (ii) PYTHIA and HERWIG parton-shower event generators with different tunes of parameters, and (iii) CASCADE and HEJ models, including different non-collinear corrections to standard single-parton radiation. The single-jet inclusive forward jet spectrum is well described by all models, but not all predictions are consistent with the spectra observed for the forward-central dijet events.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The inclusive production cross sections for forward jets, as well for jets in dijet events with at least one jet emitted at central and the other at forward pseudorapidities, are measured in the range of transverse momenta pt = 35-150 GeV/c in proton-proton collisions at sqrt(s) = 7 TeV by the CMS experiment at the LHC. | contribution 0.96 | 0.97 | 0.07 | asserted 1.00 |
| s1 | Forward jets are measured within pseudorapidities 3.2<|eta|<4.7, and central jets within the |eta|<2.8 range. | method 0.97 | 0.92 | 0.02 | asserted 1.00 |
| s2 | The double differential cross sections with respect to pt and eta are compared to predictions from three approaches in perturbative quantum chromodynamics: (i) next-to-leading-order calculations obtained with and without matching to parton-shower Monte Carlo simulations, (ii) PYTHIA and HERWIG parton-shower event generators with different tunes of parameters, and (iii) CASCADE and HEJ models, including different non-collinear corrections to standard single-parton radiation. | method 0.77 | 0.60 | 0.06 | asserted 0.96 |
| s3 | The single-jet inclusive forward jet spectrum is well described by all models, but not all predictions are consistent with the spectra observed for the forward-central dijet events. | result 0.93 | 0.90 | 0.74 | asserted 1.00 |
What was examined, and what was not
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The paper
Original abstract
The inclusive production cross sections for forward jets, as well for jets in dijet events with at least one jet emitted at central and the other at forward pseudorapidities, are measured in the range of transverse momenta pt = 35-150 GeV/c in proton-proton collisions at sqrt(s) = 7 TeV by the CMS experiment at the LHC. Forward jets are measured within pseudorapidities 3.2<|eta|<4.7, and central jets within the |eta|<2.8 range. The double differential cross sections with respect to pt and eta are compared to predictions from three approaches in perturbative quantum chromodynamics: (i) next-to-leading-order calculations obtained with and without matching to parton-shower Monte Carlo simulations, (ii) PYTHIA and HERWIG parton-shower event generators with different tunes of parameters, and (iii) CASCADE and HEJ models, including different non-collinear corrections to standard single-parton radiation. The single-jet inclusive forward jet spectrum is well described by all models, but not all predictions are consistent with the spectra observed for the forward-central dijet events.
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References
How the literature uses it
33 arXiv papers cite this in 44 sentences
Papers citing it · 30 sentences without a confident label
Uses its method or tool 1 paper
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This number is obtained using the PU counting method described in the inelastic cross section measurements [ref] .
Pileup mitigation at CMS in 13 TeV data · Data and simulated samples · 0.86
Uses its data or values 6 papers
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The inclusive forward jet cross-section was measured from an integrated luminosity of 3.14 $pb^-1$ [ref] .
Small-x QCD physics probed with jets in CMS · Inclusive forward jet production · 0.89
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* 540, 546, and 630at the collider by the UA1 [ref] and UA2 experiments [ref] , * 546, 630, 1.8, and 1.96at the collider by the CDF [ref] and D0 experiments [ref] , * 300and 320at the collider by the H1 [ref] and ZEUS experiments [ref] , * 200in collisions at by the STAR experiment [ref] , * and of 2.76, 7, 8, and 13in collisions at the by the ALICE [ref] , ATLAS [ref] , and CMS experiments [ref] .
Determination of the strong coupling constant from inclusive jet cross section data from multiple experiments · Experimental data · 0.93
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The cross section for one forward jet production as a function of the transverse momentum of the jet was measured by the CMS collaboration at a center of mass energy of 7 TeV in the range $3.2<|y_J|<4.7$ [ref] .
Evaluating the double parton scattering contribution to Mueller-Navelet jets production at the LHC · DPS model · 0.99
Compares with it 1 paper
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Similar differences between data and theory for forward-central dijet distributions in collisions have been observed at 7 TeV [ref] .
Sensitivity of the LHC isolated-gamma+jet data to the parton distribution functions of the proton · Analysis of current LHC photon-jet data · 0.85
Cites it as background 5 papers
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Both the ATLAS [ref] and CMS [ref] Collaborations at the CERN LHC have measured forward dijet production in $$ collisions at $√(s) = 7$.
Study of dijet events with large rapidity separation in proton-proton collisions at $\sqrt{s} =$ 2.76 TeV · Introduction · 0.90
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In addition, the ATLAS and CMS experiments have reported forward jet measurements in proton-proton collisions at $√(s)=7$ for values above 20and within $η<5.2$ [ref] .
Measurement of inclusive very forward jet cross sections in proton-lead collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV · Introduction · 0.86
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Dijet production at the LHC [ref] is generally well described by perturbative quantum chromodynamics (pQCD) calculations based on the Dokshitzer–Gribov–Lipatov–Altarelli–Parisi (DGLAP) evolution equations [ref] .
Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at $\sqrt{s}$ = 7 TeV · Introduction · 0.89
What it cites · 43 sentences without a confident label
Uses the method or tool of 9 papers
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The reconstructed jet energy scale (JES) is first calibrated using data based on balancing the $$ values in dijet and in photon-jet events, as well as from MC simulations [ref] .
Determination of Jet Energy Calibration and Transverse Momentum Resolution in CMS · Jet energy corrections · 0.93
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The anti-$k_T$ jet clustering algorithm [ref] is used to reconstruct forward and central jets with a distance parameter $R$ = 0.5.
The anti-k_t jet clustering algorithm · Jet reconstruction · 1.00
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The anti-$k_T$ jet clustering algorithm [ref] is used to reconstruct forward and central jets with a distance parameter $R$ = 0.5.
FastJet user manual · Jet reconstruction · 1.00
Uses data or values from 1 paper
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At forward rapidities, the HF calorimeter has a JES calibration uncertainty that varies between 3 and 6%, depending on the $$ and $η$ of the reconstructed jet [ref] .
Determination of Jet Energy Calibration and Transverse Momentum Resolution in CMS · Determination of jet cross sections and systematic uncertainties · 0.91
Compares with 4 papers
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In addition, the measured distributions are compared to results from the cascade (version 2.2.04) [ref] and hej [ref] programs. cascade includes parton radiation from QCD evolution in $1/x$ and hej includes extra contributions from wide-angle gluon radiation, that are not provided in the other models.
Multiple Jets at the LHC with High Energy Jets · Introduction · 0.86
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In addition, the measured distributions are compared to results from the cascade (version 2.2.04) [ref] and hej [ref] programs. cascade includes parton radiation from QCD evolution in $1/x$ and hej includes extra contributions from wide-angle gluon radiation, that are not provided in the other models.
Hadronic final state predictions from CCFM: the hadron-level Monte Carlo generator CASCADE · Introduction · 0.86
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In addition, the measured distributions are compared to results from the cascade (version 2.2.04) [ref] and hej [ref] programs. cascade includes parton radiation from QCD evolution in $1/x$ and hej includes extra contributions from wide-angle gluon radiation, that are not provided in the other models.
The CCFM Monte Carlo generator CASCADE 2.2.0 · Introduction · 0.86
Cites as background 2 papers
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Such event topologies may show deviations from the parton radiation patterns expected from the standard Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution equations [ref] , as modelled in the approaches of e.g. Balitski-Fadin-Kuraev-Lipatov (BFKL) [ref] , Ciafaloni-Catani-Fiorani-Marchesini (CCFM) [ref] , or gluon saturation [ref] .
The Color Glass Condensate · Introduction · 0.89
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Jet production in hadron-hadron collisions is sensitive to the nature of the underlying parton-parton scattering processes, to the details of parton radiation, as well as to the parton distribution functions (PDF) of the colliding hadrons [ref] .
Jets in Hadron-Hadron Collisions · Introduction · 0.99
Discussion
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