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CMS-HIN-23-004 ; CERN-EP-2025-014
Observation of nuclear modification of energy-energy correlators inside jets in heavy ion collisions
Submitted to Phys. Lett. B
Abstract: Energy-energy correlators are constructed by averaging the number of charged particle pairs within jets, weighted by the product of their transverse momenta, as a function of the angular separation of the particles within a pair. They are sensitive to a multitude of perturbative and nonperturbative quantum chromodynamics phenomena in high-energy particle collisions. Using lead-lead data recorded with the CMS detector, energy-energy correlators inside high transverse momentum jets are measured in heavy ion collisions for the first time. The data are obtained at a nucleon-nucleon center-of-mass energy of 5.02 TeV and correspond to an integrated luminosity of 1.70 nb1. A similar analysis is done for proton-proton collisions at the same center-of-mass energy to establish a reference. The ratio of lead-lead to proton-proton energy-energy correlators reveals significant jet substructure modifications in the quark-gluon plasma. The results are compared to different models that incorporate either color coherence or medium response effects, where the two effects predict similar substructure modifications.
Figures Summary References CMS Publications
Figures

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Figure 1:
Left: Illustration on how energy-energy correlators are constructed. The green dashed arrow represents the jet axis and the solid arrows represent charged particles. Right: Schematic structure of an energy-energy correlator distribution in pp collisions.

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Figure 1-a:
Left: Illustration on how energy-energy correlators are constructed. The green dashed arrow represents the jet axis and the solid arrows represent charged particles. Right: Schematic structure of an energy-energy correlator distribution in pp collisions.

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Figure 1-b:
Left: Illustration on how energy-energy correlators are constructed. The green dashed arrow represents the jet axis and the solid arrows represent charged particles. Right: Schematic structure of an energy-energy correlator distribution in pp collisions.

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Figure 2:
Centrality and pT,jet dependent energy-energy correlators for pchT> 1 GeV. The red squares show the n= 1 and the blue circles the n= 2 distributions for PbPb collisions. The pp results for different centralities are identical, with orange crosses showing the n= 1 and cyan triangle crosses the n= 2 distributions. The error bars show statistical uncertainties, the point-by-point systematic uncertainties are shown in boxes, while the error bands show systematic uncertainties related to the shape of the distribution. The two colors illustrate that the shape uncertainties tend to tilt the distribution one way or another. All correlators have been normalized to unity in the plotted range.

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Figure 3:
Centrality and pT,jet dependent energy-energy correlators for pchT> 2 GeV. The red squares show the n= 1 and the blue circles the n= 2 distributions for PbPb collisions. The pp results for different centralities are identical, with orange crosses showing the n= 1 and cyan triangle crosses the n= 2 distributions. The error bars show statistical uncertainties, the point-by-point systematic uncertainties are shown in boxes, while the error bands show systematic uncertainties related to the shape of the distribution. The two colors illustrate that the shape uncertainties tend to tilt the distribution one way or another. All correlators have been normalized to unity in the plotted range.

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Figure 4:
Centrality- and pT,jet-dependent ratios of PbPb to pp energy-energy correlators with pchT> 1 GeV and for both n= 1 (red squares) and n= 2 (blue circles). The error bars show statistical uncertainties, the point-by-point systematic uncertainties are shown in boxes, while the error bands show systematic uncertainties related to the shape of the ratio. The two colors illustrate that the shape uncertainties tend to tilt the ratio one way or another.

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Figure 5:
Centrality- and pT,jet-dependent ratios of PbPb to pp energy-energy correlators with pchT> 2 GeV and for both n= 1 (red squares) and n= 2 (blue circles). The error bars show statistical uncertainties, the point-by-point systematic uncertainties are shown in boxes, while the error bands show systematic uncertainties related to the shape of the ratio. The two colors illustrate that the shape uncertainties tend to tilt the ratio one way or another.

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Figure 6:
Comparison of PYTHIA [58], HERWIG [61,62], and the hybrid model [82,83,84] calculations to the observed energy-energy correlators for pchT> 1 GeV, 120 <pT,jet< 140 GeV and n= 1 (left) and n= 2 (right) in pp collisions. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 6-a:
Comparison of PYTHIA [58], HERWIG [61,62], and the hybrid model [82,83,84] calculations to the observed energy-energy correlators for pchT> 1 GeV, 120 <pT,jet< 140 GeV and n= 1 (left) and n= 2 (right) in pp collisions. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 6-b:
Comparison of PYTHIA [58], HERWIG [61,62], and the hybrid model [82,83,84] calculations to the observed energy-energy correlators for pchT> 1 GeV, 120 <pT,jet< 140 GeV and n= 1 (left) and n= 2 (right) in pp collisions. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 7:
The PbPb to pp ratios of energy-energy correlators with pchT> 1 GeV and n= 1 are shown for 120 <pT,jet< 140 GeV (left) and 180 <pT,jet< 200 GeV (right) together with the hybrid model [82,83,84] predictions with three different wake settings. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 7-a:
The PbPb to pp ratios of energy-energy correlators with pchT> 1 GeV and n= 1 are shown for 120 <pT,jet< 140 GeV (left) and 180 <pT,jet< 200 GeV (right) together with the hybrid model [82,83,84] predictions with three different wake settings. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 7-b:
The PbPb to pp ratios of energy-energy correlators with pchT> 1 GeV and n= 1 are shown for 120 <pT,jet< 140 GeV (left) and 180 <pT,jet< 200 GeV (right) together with the hybrid model [82,83,84] predictions with three different wake settings. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 8:
The double ratios of n= 1 PbPb to pp single ratios with pchT> 2 GeV to pchT> 1 GeV are shown for 120 <pT,jet< 140 GeV (left) and 180 <pT,jet< 200 GeV (right) together with the hybrid model [82,83,84] predictions with three different wake settings. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 8-a:
The double ratios of n= 1 PbPb to pp single ratios with pchT> 2 GeV to pchT> 1 GeV are shown for 120 <pT,jet< 140 GeV (left) and 180 <pT,jet< 200 GeV (right) together with the hybrid model [82,83,84] predictions with three different wake settings. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 8-b:
The double ratios of n= 1 PbPb to pp single ratios with pchT> 2 GeV to pchT> 1 GeV are shown for 120 <pT,jet< 140 GeV (left) and 180 <pT,jet< 200 GeV (right) together with the hybrid model [82,83,84] predictions with three different wake settings. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 9:
The PbPb to pp ratios of energy-energy correlators with pchT> 1 GeV and n= 1 are shown for 120 <pT,jet< 140 GeV (left) and 180 <pT,jet< 200 GeV (right) together with predictions from perturbative calculation by Holguin and collaborators [85] and from JEWEL simulation [86,87]. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 9-a:
The PbPb to pp ratios of energy-energy correlators with pchT> 1 GeV and n= 1 are shown for 120 <pT,jet< 140 GeV (left) and 180 <pT,jet< 200 GeV (right) together with predictions from perturbative calculation by Holguin and collaborators [85] and from JEWEL simulation [86,87]. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 9-b:
The PbPb to pp ratios of energy-energy correlators with pchT> 1 GeV and n= 1 are shown for 120 <pT,jet< 140 GeV (left) and 180 <pT,jet< 200 GeV (right) together with predictions from perturbative calculation by Holguin and collaborators [85] and from JEWEL simulation [86,87]. In the lower panels, the experimental uncertainties are indicated by the bands around unity.

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Figure 10:
The PbPb to pp ratios of energy-energy correlators with pchT> 1 GeV and n= 1 are shown for 120 <pT,jet< 140 GeV together with predictions from CoLBT model [88,89,90]. The q-values are shown for PbPb collisions, the value is fixed to 0.5 for pp. In the lower panel, the experimental uncertainties are indicated by the bands around unity.

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Figure 11:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 11-a:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 11-b:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 11-c:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 11-d:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 11-e:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 11-f:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 11-g:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 11-h:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 12:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 12-a:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 12-b:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 12-c:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 12-d:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 12-e:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 12-f:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 12-g:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 12-h:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from PYTHIA, HERWIG, and the hybrid model.

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Figure 13:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to prediction from JEWEL.

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Figure 13-a:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to prediction from JEWEL.

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Figure 13-b:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to prediction from JEWEL.

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Figure 13-c:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to prediction from JEWEL.

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Figure 13-d:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to prediction from JEWEL.

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Figure 13-e:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to prediction from JEWEL.

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Figure 13-f:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to prediction from JEWEL.

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Figure 13-g:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to prediction from JEWEL.

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Figure 13-h:
Energy-energy correlator distributions from pp collisions with n= 1 in different pchT and pT,jet bins compared to prediction from JEWEL.

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Figure 14:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL.

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Figure 14-a:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL.

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Figure 14-b:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL.

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Figure 14-c:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL.

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Figure 14-d:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL.

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Figure 14-e:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL.

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Figure 14-f:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL.

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Figure 14-g:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL.

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Figure 14-h:
Energy-energy correlator distributions from pp collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL.

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Figure 15:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 15-a:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 15-b:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 15-c:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 15-d:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 15-e:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 15-f:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 15-g:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 15-h:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 16:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 16-a:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 16-b:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 16-c:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 16-d:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 16-e:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 16-f:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 16-g:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 16-h:
Energy-energy correlator distributions from 50--90% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 17:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 17-a:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 17-b:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 17-c:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 17-d:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 17-e:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 17-f:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 17-g:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 17-h:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 18:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 18-a:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 18-b:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 18-c:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 18-d:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 18-e:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 18-f:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 18-g:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 18-h:
Energy-energy correlator distributions from 30--50% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 19:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 19-a:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 19-b:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 19-c:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 19-d:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 19-e:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 19-f:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 19-g:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 19-h:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 20:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 20-a:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 20-b:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 20-c:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 20-d:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 20-e:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 20-f:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 20-g:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 20-h:
Energy-energy correlator distributions from 10--30% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 21:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 21-a:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 21-b:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 21-c:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 21-d:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 21-e:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 21-f:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 21-g:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 21-h:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 22:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 22-a:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 22-b:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 22-c:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 22-d:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 22-e:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 22-f:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 22-g:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 22-h:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 23:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 and pchT> 1 GeV in different pT,jet bins compared to predictions from perturbative calculation from Holguin and collaborators with different values of the k-parameter.

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Figure 23-a:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 and pchT> 1 GeV in different pT,jet bins compared to predictions from perturbative calculation from Holguin and collaborators with different values of the k-parameter.

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Figure 23-b:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 and pchT> 1 GeV in different pT,jet bins compared to predictions from perturbative calculation from Holguin and collaborators with different values of the k-parameter.

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Figure 23-c:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 and pchT> 1 GeV in different pT,jet bins compared to predictions from perturbative calculation from Holguin and collaborators with different values of the k-parameter.

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Figure 23-d:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 and pchT> 1 GeV in different pT,jet bins compared to predictions from perturbative calculation from Holguin and collaborators with different values of the k-parameter.

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Figure 24:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 24-a:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 24-b:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 24-c:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 24-d:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 24-e:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 24-f:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 24-g:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 24-h:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 1 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 25:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 25-a:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 25-b:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 25-c:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 25-d:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 25-e:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 25-f:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 25-g:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 25-h:
Energy-energy correlator distributions from 0--10% central PbPb collisions with n= 2 in different pchT and pT,jet bins compared to predictions from JEWEL simulation with and without recoils.

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Figure 26:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 26-a:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 26-b:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 26-c:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 26-d:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 26-e:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 26-f:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 26-g:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 26-h:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 27:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 27-a:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 27-b:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 27-c:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 27-d:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 27-e:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 27-f:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 27-g:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 27-h:
Ratios of 50--90% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 28:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 28-a:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 28-b:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 28-c:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 28-d:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 28-e:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 28-f:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 28-g:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 28-h:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 29:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 29-a:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 29-b:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 29-c:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 29-d:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 29-e:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 29-f:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 29-g:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 29-h:
Ratios of 30--50% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 30:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 30-a:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 30-b:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 30-c:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 30-d:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 30-e:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 30-f:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 30-g:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 30-h:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 31:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 31-a:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 31-b:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 31-c:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 31-d:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 31-e:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 31-f:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 31-g:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 31-h:
Ratios of 10--30% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 32:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 32-a:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 32-b:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 32-c:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 32-d:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 32-e:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 32-f:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 32-g:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 32-h:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 33:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 33-a:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 33-b:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 33-c:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 33-d:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 33-e:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 33-f:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 33-g:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 33-h:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 34:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 and pchT> 1 GeV in different pT,jet bins compared to predictions from perturbative calculation from Holguin and collaborators with different values of the k-parameter.

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Figure 34-a:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 and pchT> 1 GeV in different pT,jet bins compared to predictions from perturbative calculation from Holguin and collaborators with different values of the k-parameter.

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Figure 34-b:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 and pchT> 1 GeV in different pT,jet bins compared to predictions from perturbative calculation from Holguin and collaborators with different values of the k-parameter.

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Figure 34-c:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 and pchT> 1 GeV in different pT,jet bins compared to predictions from perturbative calculation from Holguin and collaborators with different values of the k-parameter.

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Figure 34-d:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 and pchT> 1 GeV in different pT,jet bins compared to predictions from perturbative calculation from Holguin and collaborators with different values of the k-parameter.

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Figure 35:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 35-a:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 35-b:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 35-c:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 35-d:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 35-e:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 35-f:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 35-g:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 35-h:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 1 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 36:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 36-a:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 36-b:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 36-c:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 36-d:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 36-e:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 36-f:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 36-g:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 36-h:
Ratios of 0--10% central PbPb to pp energy-energy correlators with n= 2 in different pchT and pT,jet bins compared to JEWEL predictions with and without recoils.

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Figure 37:
The double ratios of 50--90% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 37-a:
The double ratios of 50--90% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 37-b:
The double ratios of 50--90% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 37-c:
The double ratios of 50--90% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 37-d:
The double ratios of 50--90% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 37-e:
The double ratios of 50--90% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 37-f:
The double ratios of 50--90% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 37-g:
The double ratios of 50--90% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 37-h:
The double ratios of 50--90% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 38:
The double ratios of 30--50% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 38-a:
The double ratios of 30--50% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 38-b:
The double ratios of 30--50% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 38-c:
The double ratios of 30--50% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 38-d:
The double ratios of 30--50% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 38-e:
The double ratios of 30--50% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 38-f:
The double ratios of 30--50% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 38-g:
The double ratios of 30--50% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 38-h:
The double ratios of 30--50% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

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Figure 39:
The double ratios of 10--30% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 39-a:
The double ratios of 10--30% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 39-b:
The double ratios of 10--30% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 39-c:
The double ratios of 10--30% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 39-d:
The double ratios of 10--30% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 39-e:
The double ratios of 10--30% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 39-f:
The double ratios of 10--30% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 39-g:
The double ratios of 10--30% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 39-h:
The double ratios of 10--30% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 40:
The double ratios of 0--10% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 40-a:
The double ratios of 0--10% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 40-b:
The double ratios of 0--10% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 40-c:
The double ratios of 0--10% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 40-d:
The double ratios of 0--10% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 40-e:
The double ratios of 0--10% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 40-f:
The double ratios of 0--10% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 40-g:
The double ratios of 0--10% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.

png pdf
Figure 40-h:
The double ratios of 0--10% central PbPb to pp single ratios with pchT> 2 GeV and pchT> 1 GeV for n= 1 (left) and n= 2 (right) in different pT,jet bins compared to the hybrid model predictions with different jet wake settings.
Summary
For the first time, energy-energy correlators inside high transverse momentum (pT) jets are measured in heavy ion collisions. The correlators from lead-lead (PbPb) data are compared to those from proton-proton (pp) collisions at the same nucleon-nucleon center-of-mass energy of 5.02 TeV obtained using the CMS detector. A highly differential measurement of the two-point energy correlators is presented as a function of separation in azimuth and pseudorapidity of two charged particles within a jet cone, Δr. The time evolution of the jet fragmentation is imprinted in the shapes of the energy-energy correlator distributions. For both PbPb and pp collisions, we see similar large scale trends. There is a negative slope at large Δr in the data, which is interpreted to correspond to the dynamics of the parton shower phase. The positive slope at low Δr is expected to reflect the propagation of noninteracting hadrons. The transition region between these two limits is conjectured to be sensitive to information regarding the hadronization process. Within the same kinematic selections, the transition region in PbPb collisions is shifted to lower Δr values compared to pp collisions, consistent with parton energy loss. A pronounced enhancement at large Δr is observed in the ratio of the PbPb to pp distributions when using a low charged particle pT threshold of pchT> 1 GeV and taking the product of the pchT of the two particles as the momentum weight. This enhancement disappears if the sensitivity to low-pT particles is decreased by increasing the pchT threshold to 2 GeV or by taking the square of the product as the momentum weight. A comparison of our data to several models suggests that medium response is partially accountable for the observed enhancement for large Δr values. A perturbative calculation with color coherence effects also appears to favor enhancement in this ratio at large Δr values. This measurement establishes a powerful new tool for studying the influence of medium response and color coherence on jet substructure and helps to elucidate how jets are affected by interactions with the quark-gluon plasma.
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