User

Roles
Anonymous

Azimuthal anisotropy of jet particles in p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV

Description
Figures from paper submitted to Journal of High Energy Physics
Abstract:

The azimuthal anisotropy of particles associated with jets (jet particles) at midrapidity is measured for the first time in p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV down to transverse momentum ($p_{\rm T}$) of 0.5 GeV/$c$ and 2 GeV/$c$, respectively, with ALICE. The results obtained in p-Pb collisions are based on a novel three-particle correlation technique. The azimuthal anisotropy coefficient $v_2$ in high-multiplicity p-Pb collisions is positive, with a significance reaching 6.8$\sigma$ at low $p_{\rm T}$, and its magnitude is smaller than in semicentral Pb-Pb collisions. In contrast to the measurements in Pb-Pb collisions, the $v_2$ coefficient is also found independent of $p_{\rm T}$ within uncertainties. Comparisons with the inclusive charged-particle $v_2$ and with AMPT calculations are discussed. The predictions suggest that parton interactions play an important role in generating a non-zero jet-particle $v_2$ in p-Pb collisions, even though they overestimate the reported measurement. These observations shed new insights on the understanding of the origin of the collective behaviour of jet particles in small systems such as p-Pb collisions, and provide significant stringent new constraints to models.

JHEP 08 (2024) 234
e-Print: arXiv:2212.12609 | PDF | inSPIRE

Paper:

Figure 1a
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig1a.eps
Figure image (.pdf)
Fig1a.pdf
Figure 1b
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig1b.eps
Figure image (.pdf)
Fig1b.pdf
Figure 1c
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig1c.eps
Figure image (.pdf)
Fig1c.pdf
Figure 1d
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig1d.eps
Figure image (.pdf)
Fig1d.pdf
Figure 2a
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig2a.eps
Figure image (.pdf)
Fig2a.pdf
Figure 2b
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig2b.eps
Figure image (.pdf)
Fig2b.pdf
Figure 2c
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig2c.eps
Figure image (.pdf)
Fig2c.pdf
Figure 2d
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig2d.eps
Figure image (.pdf)
Fig2d.pdf
Figure 3a
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig3a.eps
Figure image (.pdf)
Fig3a.pdf
Figure 3b
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig3b.eps
Figure image (.pdf)
Fig3b.pdf
Figure 3c
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig3c.eps
Figure image (.pdf)
Fig3c.pdf
Figure 3d
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig3d.eps
Figure image (.pdf)
Fig3d.pdf
Figure 4a
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig4a.eps
Figure image (.pdf)
Fig4a.pdf
Figure 4b
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig4b.eps
Figure image (.pdf)
Fig4b.pdf
Figure 4c
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig4c.eps
Figure image (.pdf)
Fig4c.pdf
Figure 4d
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig4d.eps
Figure image (.pdf)
Fig4d.pdf
Figure 5
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig5.eps
Figure image (.pdf)
Fig5.pdf
Figure 6
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig6.eps
Figure image (.pdf)
Fig6.pdf
Figure 7
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig7.eps
Figure image (.pdf)
Fig7.pdf
Figure 8
Energy
5.02 TeV
System
Pb-Pb
p-Pb
Scope: PWG
PWG-CF (Flow and Correlations)
Figure image (.eps)
Fig8.eps
Figure image (.pdf)
Fig8.pdf