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Measurement of internal structure of jets in Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 2.76$ TeV with the ATLAS detector at the LHC

The ATLAS collaboration Aaboud, Morad ; Aad, Georges ; Abbott, Brad ; et al.

Eur.Phys.J.C 77 (2017) 379, 2017.

https://inspirehep.net/literature/1511869 Inspire Record 1511869 DOI 10.17182/hepdata.77789 https://doi.org/10.17182/hepdata.77789

The distributions of transverse momentum and longitudinal momentum fraction of charged particles in jets are measured in Pb+Pb and pp collisions with the ATLAS detector at the LHC. The distributions are measured as a function of jet transverse momentum and rapidity. The analysis utilises an integrated luminosity of 0.14 nb$^{-1}$ of Pb+Pb data and 4.0 pb$^{-1}$ of pp data collected in 2011 and 2013, respectively, at the same centre-of-mass energy of 2.76 TeV per colliding nucleon pair. The distributions measured in pp collisions are used as a reference for those measured in Pb+Pb collisions in order to evaluate the impact on the internal structure of jets from the jet energy loss of fast partons propagating through the hot, dense medium created in heavy-ion collisions. Modest but significant centrality-dependent modifications of fragmentation functions in Pb+Pb collisions with respect to those in pp collisions are seen. No significant dependence of modifications on jet $p_{\mathrm{T}}$ and rapidity selections is observed except for the fragments with the highest transverse momenta for which some reduction of yields is observed for more forward jets.

81 data tables

Table 1

D(pt) distributions for pp and Pb+Pb collisions, jet rapidity |y| < 2.1.

Table 2

D(pt) distributions for pp and Pb+Pb collisions, jet rapidity |y| < 0.3.

Table 3

D(pt) distributions for pp and Pb+Pb collisions, jet rapidity 0.3 < |y| < 0.8.

Table 4

D(pt) distributions for pp and Pb+Pb collisions, jet rapidity 1.2 < |y| < 2.1.

Table 5

D(z) distributions for pp and Pb+Pb collisions, jet rapidity |y| < 2.1.

Table 6

D(z) distributions for pp and Pb+Pb collisions, jet rapidity |y| < 0.3.

Table 7

D(z) distributions for pp and Pb+Pb collisions, jet rapidity 0.3 < |y| < 0.8.

Table 8

D(z) distributions for pp and Pb+Pb collisions, jet rapidity 1.2 < |y| < 2.1.

Table 9

Ratio of D(pt) distributions collisions, centrality 0-10 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 10

Ratio of D(pt) distributions collisions, centrality 20-30 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 11

Ratio of D(pt) distributions collisions, centrality 30-40 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 12

Ratio of D(pt) distributions collisions, centrality 60-80 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 13

Ratio of D(pt) distributions collisions, centrality 0-10 PCT for jets with |y| < 0.3, 100 < pt < 398 GeV.

Table 14

Ratio of D(pt) distributions collisions, centrality 20-30 PCT for jets with |y| < 0.3, 100 < pt < 398 GeV.

Table 15

Ratio of D(pt) distributions collisions, centrality 30-40 PCT for jets with |y| < 0.3, 100 < pt < 398 GeV.

Table 16

Ratio of D(pt) distributions collisions, centrality 60-80 PCT for jets with |y| < 0.3, 100 < pt < 398 GeV.

Table 17

Ratio of D(pt) distributions collisions, centrality 0-10 PCT for jets with 0.3 < |y| < 0.8, 100 < pt < 398 GeV.

Table 18

Ratio of D(pt) distributions collisions, centrality 20-30 PCT for jets with 0.3 < |y| < 0.8, 100 < pt < 398 GeV.

Table 19

Ratio of D(pt) distributions collisions, centrality 30-40 PCT for jets with 0.3 < |y| < 0.8, 100 < pt < 398 GeV.

Table 20

Ratio of D(pt) distributions collisions, centrality 60-80 PCT for jets with 0.3 < |y| < 0.8, 100 < pt < 398 GeV.

Table 21

Ratio of D(pt) distributions collisions, centrality 0-10 PCT for jets with 1.2 < |y| < 2.1, 100 < pt < 398 GeV.

Table 22

Ratio of D(pt) distributions collisions, centrality 20-30 PCT for jets with 1.2 < |y| < 2.1, 100 < pt < 398 GeV.

Table 23

Ratio of D(pt) distributions collisions, centrality 30-40 PCT for jets with 1.2 < |y| < 2.1, 100 < pt < 398 GeV.

Table 24

Ratio of D(pt) distributions collisions, centrality 60-80 PCT for jets with 1.2 < |y| < 2.1, 100 < pt < 398 GeV.

Table 25

Ratio of D(z) distributions collisions, centrality 0-10 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 26

Ratio of D(z) distributions collisions, centrality 20-30 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 27

Ratio of D(z) distributions collisions, centrality 30-40 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 28

Ratio of D(z) distributions collisions, centrality 60-80 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 29

Ratio of D(z) distributions collisions, centrality 0-10 PCT for jets with |y| < 0.3, 100 < pt < 398 GeV.

Table 30

Ratio of D(z) distributions collisions, centrality 20-30 PCT for jets with |y| < 0.3, 100 < pt < 398 GeV.

Table 31

Ratio of D(z) distributions collisions, centrality 30-40 PCT for jets with |y| < 0.3, 100 < pt < 398 GeV.

Table 32

Ratio of D(z) distributions collisions, centrality 60-80 PCT for jets with |y| < 0.3, 100 < pt < 398 GeV.

Table 33

Ratio of D(z) distributions collisions, centrality 0-10 PCT for jets with 0.3 < |y| < 0.8, 100 < pt < 398 GeV.

Table 34

Ratio of D(z) distributions collisions, centrality 20-30 PCT for jets with 0.3 < |y| < 0.8, 100 < pt < 398 GeV.

Table 35

Ratio of D(z) distributions collisions, centrality 30-40 PCT for jets with 0.3 < |y| < 0.8, 100 < pt < 398 GeV.

Table 36

Ratio of D(z) distributions collisions, centrality 60-80 PCT for jets with 0.3 < |y| < 0.8, 100 < pt < 398 GeV.

Table 37

Ratio of D(z) distributions collisions, centrality 0-10 PCT for jets with 1.2 < |y| < 2.1, 100 < pt < 398 GeV.

Table 38

Ratio of D(z) distributions collisions, centrality 20-30 PCT for jets with 1.2 < |y| < 2.1, 100 < pt < 398 GeV.

Table 39

Ratio of D(z) distributions collisions, centrality 30-40 PCT for jets with 1.2 < |y| < 2.1, 100 < pt < 398 GeV.

Table 40

Ratio of D(z) distributions collisions, centrality 60-80 PCT for jets with 1.2 < |y| < 2.1, 100 < pt < 398 GeV.

Table 41

Ratio of D(pt) distributions collisions, centrality 0-10 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 42

Ratio of D(pt) distributions collisions, centrality 20-30 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 43

Ratio of D(pt) distributions collisions, centrality 30-40 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 44

Ratio of D(pt) distributions collisions, centrality 60-80 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 45

Ratio of D(pt) distributions collisions, centrality 0-10 PCT for jets with |y| < 2.1, 100 < pt < 126 GeV.

Table 46

Ratio of D(pt) distributions collisions, centrality 20-30 PCT for jets with |y| < 2.1, 100 < pt < 126 GeV.

Table 47

Ratio of D(pt) distributions collisions, centrality 30-40 PCT for jets with |y| < 2.1, 100 < pt < 126 GeV.

Table 48

Ratio of D(pt) distributions collisions, centrality 60-80 PCT for jets with |y| < 2.1, 100 < pt < 126 GeV.

Table 49

Ratio of D(pt) distributions collisions, centrality 0-10 PCT for jets with |y| < 2.1, 126 < pt < 158 GeV.

Table 50

Ratio of D(pt) distributions collisions, centrality 20-30 PCT for jets with |y| < 2.1, 126 < pt < 158 GeV.

Table 51

Ratio of D(pt) distributions collisions, centrality 30-40 PCT for jets with |y| < 2.1, 126 < pt < 158 GeV.

Table 52

Ratio of D(pt) distributions collisions, centrality 60-80 PCT for jets with |y| < 2.1, 126 < pt < 158 GeV.

Table 53

Ratio of D(pt) distributions collisions, centrality 0-10 PCT for jets with |y| < 2.1, 158 < pt < 398 GeV.

Table 54

Ratio of D(pt) distributions collisions, centrality 20-30 PCT for jets with |y| < 2.1, 158 < pt < 398 GeV.

Table 55

Ratio of D(pt) distributions collisions, centrality 30-40 PCT for jets with |y| < 2.1, 158 < pt < 398 GeV.

Table 56

Ratio of D(pt) distributions collisions, centrality 60-80 PCT for jets with |y| < 2.1, 158 < pt < 398 GeV.

Table 57

Ratio of D(z) distributions collisions, centrality 0-10 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 58

Ratio of D(z) distributions collisions, centrality 20-30 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 59

Ratio of D(z) distributions collisions, centrality 30-40 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 60

Ratio of D(z) distributions collisions, centrality 60-80 PCT for jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 61

Ratio of D(z) distributions collisions, centrality 0-10 PCT for jets with |y| < 2.1, 100 < pt < 126 GeV.

Table 62

Ratio of D(z) distributions collisions, centrality 20-30 PCT for jets with |y| < 2.1, 100 < pt < 126 GeV.

Table 63

Ratio of D(z) distributions collisions, centrality 30-40 PCT for jets with |y| < 2.1, 100 < pt < 126 GeV.

Table 64

Ratio of D(z) distributions collisions, centrality 60-80 PCT for jets with |y| < 2.1, 100 < pt < 126 GeV.

Table 65

Ratio of D(z) distributions collisions, centrality 0-10 PCT for jets with |y| < 2.1, 126 < pt < 158 GeV.

Table 66

Ratio of D(z) distributions collisions, centrality 20-30 PCT for jets with |y| < 2.1, 126 < pt < 158 GeV.

Table 67

Ratio of D(z) distributions collisions, centrality 30-40 PCT for jets with |y| < 2.1, 126 < pt < 158 GeV.

Table 68

Ratio of D(z) distributions collisions, centrality 60-80 PCT for jets with |y| < 2.1, 126 < pt < 158 GeV.

Table 69

Ratio of D(z) distributions collisions, centrality 0-10 PCT for jets with |y| < 2.1, 158 < pt < 398 GeV.

Table 70

Ratio of D(z) distributions collisions, centrality 20-30 PCT for jets with |y| < 2.1, 158 < pt < 398 GeV.

Table 71

Ratio of D(z) distributions collisions, centrality 30-40 PCT for jets with |y| < 2.1, 158 < pt < 398 GeV.

Table 72

Ratio of D(z) distributions collisions, centrality 60-80 PCT for jets with |y| < 2.1, 158 < pt < 398 GeV.

Table 73

The difference between the total yield of particles with 1 < pt^trk < 4 GeV measured in 0-80 PCT Pb+Pb collisions and the total yield measured in the same pt interval measured in pp collisions in jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 74

The difference between the total yield of particles with 4 < pt^trk < 25 GeV measured in 0-80 PCT Pb+Pb collisions and the total yield measured in the same pt interval measured in pp collisions in jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 75

The difference between the total yield of particles with 25 < pt^trk < 100 GeV measured in 0-80 PCT Pb+Pb collisions and the total yield measured in the same pt interval measured in pp collisions in jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 76

The difference between the total transverse momentum of particles with 1 < pt^trk < 4 GeV measured in 0-80 PCT Pb+Pb collisions and the total transverse momentum of particles in the same pt interval measured in pp collisions in jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 77

The difference between the total transverse momentum of particles with 4 < pt^trk < 25 GeV measured in 0-80 PCT Pb+Pb collisions and the total transverse momentum of particles in the same pt interval measured in pp collisions in jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 78

The difference between the total transverse momentum of particles with 25 < pt^trk < 100 GeV measured in 0-80 PCT Pb+Pb collisions and the total transverse momentum of particles in the same pt interval measured in pp collisions in jets with |y| < 2.1, 100 < pt < 398 GeV.

Table 79

The ratio of R_D(z) distributions in three rapidity selections for 0-10 PCT Pb+Pb collisions.

Table 80

The ratio of R_D(z) distributions in three rapidity selections for 10-20 PCT Pb+Pb collisions.

Table 81

The ratio of R_D(z) distributions in three rapidity selections for 20-30 PCT Pb+Pb collisions.

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