Jet properties in PbPb and pp collisions at $\sqrt{s_{\mathrm{N}\;\mathrm{N}}}=5.02$ TeV

The collaboration
JHEP 05 (2018) 006, 2018.

Abstract
Modifications of the properties of jets in PbPb collisions, relative to those in pp collisions, are studied at a nucleon-nucleon center-of-mass energy of $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV via correlations of charged particles with the jet axis in relative pseudorapidity ($\Delta \eta$), relative azimuth ($\Delta \phi$), and relative angular distance from the jet axis $\Delta \mathrm{r} = \sqrt{{(\Delta\eta)^{2}+(\Delta\phi)^{2}}}$. This analysis uses data collected with the CMS detector at the LHC, corresponding to integrated luminosities of 404 $\mu$b$^{-1}$ and 27.4 pb$^{-1}$ for PbPb and pp collisions, respectively. Charged particle number densities, jet fragmentation functions, and jet shapes are presented as a function of PbPb collision centrality and charged-particle track transverse momentum, providing a differential description of jet modifications due to interactions with the quark-gluon plasma.

• Table 1

Data from top and middle panels of Fig. 1

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The distribution of jet-correlated charged-particle tracks with $|{\Delta\phi}|<1.0$ as a function of $\Delta\eta$ in pp and PbPb collisions. The PbPb...

• Table 2

Data from bottom panel of Fig. 1

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The difference between the PbPb and pp measurements from Table 1.

• Table 3

Data from top and middle panels of Fig. 2

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The distribution of jet-correlated charged-particle tracks with $|{\Delta\eta}|<1.0$ as a function of $\Delta\phi$ in pp and PbPb collisions. The PbPb...

• Table 4

Data from bottom panel of Fig. 2

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The difference between the PbPb and pp measurements from Table 3.

• Table 5

Data from top and middle panels of Fig. 3

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The distribution of jet-correlated charged-particle tracks as a function of $\Delta\mathrm{r}$ in pp and PbPb collisions. The PbPb results are...

• Table 6

Data from bottom panel of Fig. 3

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The difference between the PbPb and pp measurements from Table 5.

• Table 7

Data from top panel of Fig. 4

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The distribution of jet-correlated charged-particle tracks with $\Delta\mathrm{r} <1$ as a function of ${p_{\mathrm{T}}^{\text{trk}}}$ in PbPb and pp collisions. The...

• Table 8

Data from bottom panel of Fig. 4

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The corresponding results for the difference between the PbPb and pp measurements from Table 7.

• Table 9

Data from top and middle panels of Fig. 5

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The radial jet momentum distribution $\mathrm{P}(\Delta\mathrm{r})$ of jets in pp and PbPb collisions. The PbPb results are shown for different...

• Table 10

Data from bottom panel of Fig. 5

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The ratio between PbPb and pp measurements from Table 9 for the indicated intervals of ${p_{\mathrm{T}}^{\text{trk}}}$.

• Table 11

Data from top and middle panels of Fig. 6

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The jet shape $\rho(\Delta\mathrm{r})$ in pp and PbPb collisions. The PbPb results are shown for different centrality regions.

• Table 12

Data from bottom panel of Fig. 6

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The ratio between the PbPb and pp measurements from Table 11 for the inclusive range $0.7< {p_{\mathrm{T}}^{\text{trk}}} <300GeV$.