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Study of dijet events with large rapidity separation in proton-proton collisions at $\sqrt{s}$ = 2.76 TeV

The collaboration
CMS-FSQ-13-004, 2021.

Abstract
The cross sections for inclusive and Mueller-Navelet dijet production are measured as a function of the rapidity separation between the jets in proton-proton collisions at $\sqrt{s}$ = 2.76 TeV for jets with transverse momentum $p_\mathrm{T} \gt$ 35 GeV and rapidity $\vert y\vert\lt$ 4.7. Various dijet production cross section ratios are also measured. A veto on additional jets with $p_\mathrm{T} \gt$ 20 GeV is introduced to improve the sensitivity to the effects of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) evolution. The measurement is compared with the predictions of various Monte Carlo models based on leading-order and next-to-leading-order calculations including the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi leading-logarithm (LL) parton shower as well as the LL BFKL resummation.

• #### Figure 1-a

Data from Figure 1 (upper left)

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Summary of the systematic uncertainties on the cross section dσincl/d∆y.

• #### Figure 1-b

Data from Figure 1 (upper right)

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Summary of the systematic uncertainties on the cross section dσMN/d∆y.

• #### Figure 1-c

Data from Figure 1 (middle left)

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Summary of the systematic uncertainties on the ratio Rincl.

• #### Figure 1-d

Data from Figure 1 (middle right)

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Summary of the systematic uncertainties on the ratio RMN.

• #### Figure 1-e

Data from Figure 1 (lower left)

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Summary of the systematic uncertainties on the ratio Rincl_veto.

• #### Figure 1-f

Data from Figure 1 (lower right)

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Summary of the systematic uncertainties on the ratio RMN_veto.

• #### Figure 2

Data from Figure 2

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Differential cross section dσincl/d∆y for inclusive dijet production together with predictions of different MC models.

• #### Figure 3

Data from Figure 3

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Differential cross section dσMN/d∆y for Mueller-Navelet dijet production together with predictions of different MC models.

• #### Figure 4

Data from Figure 4

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Ratio Rincl of the cross sections for inclusive to ”exclusive” dijet production together with predictions of different MC models.

• #### Figure 5

Data from Figure 5

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Ratio Rincl_veto of the cross sections for inclusive to ”exclusive” with veto dijet production together with predictions of different MC...

• #### Figure 6

Data from Figure 6

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Ratio RMN of the cross sections for Mueller-Navelet to ”exclusive” dijet production together with predicgtion of different MC models.

• #### Figure 7

Data from Figure 7

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Ratio RMN_veto of the cross sections for Mueller-Navelet to ”exclusive” with veto dijet production together with predictions of different MC...

• #### Figure 5-a Supplementary

Data from additional Figure 5 (upper left)

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Summary of the systematic uncertainties on the cross section dσincl/d∆y.

• #### Figure 5-b Supplementary

Data from additional Figure 5 (upper right)

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Summary of the systematic uncertainties on the cross section dσMN/d∆y.

• #### Figure 5-c Supplementary

Data from additional Figure 5 (middle left)

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Summary of the systematic uncertainties on the ratio Rincl.

• #### Figure 5-d Supplementary

Data from additional Figure 5 (middle right)

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Summary of the systematic uncertainties on the ratio RMN.

• #### Figure 5-e Supplementary

Data from additional Figure 5 (lower left)

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Summary of the systematic uncertainties on the ratio Rincl_veto.

• #### Figure 5-f Supplementary

Data from additional Figure 5 (lower right)

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Summary of the systematic uncertainties on the ratio RMN_veto.

• #### Figure 6 Supplementary

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Differential cross section dσincl/d∆y for inclusive dijet production together with predictions of different MC models.

• #### Figure 7 Supplementary

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Differential cross section dσMN/d∆y for Mueller-Navelet dijet production together with predictions of different MC models.

• #### Figure 8 Supplementary

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Ratio Rincl of the cross sections for inclusive to ”exclusive” dijet production together with predictions of different MC models.

• #### Figure 9 Supplementary

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Ratio Rincl_veto of the cross sections for inclusive to ”exclusive” with veto dijet production together with predictions of different MC...

• #### Figure 10 Supplementary

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Ratio RMN of the cross sections for Mueller-Navelet to ”exclusive” dijet production together with predicgtion of different MC models.

• #### Figure 11 Supplementary

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Ratio RMN_veto of the cross sections for Mueller-Navelet to ”exclusive” with veto dijet production together with predictions of different MC...