Flow in pPb collisions at 5 TeV?
K. Werner, B. Guiot, Iu. Karpenko, T. Pierog
TL;DR
This paper investigates whether hydrodynamic flow, well-established in heavy ion collisions, is also present in proton-lead (p-Pb) collisions at 5 TeV, based on observed azimuthal anisotropies and particle spectra.
Contribution
The paper critically examines the evidence for hydrodynamic flow in p-Pb collisions, comparing it with heavy ion collision results to assess the presence of collective behavior.
Findings
Hydrodynamic flow signatures are observed in p-Pb collisions.
Similar azimuthal anisotropies are found in p-Pb and heavy ion collisions.
Particle spectra in p-Pb are compatible with hydrodynamic models.
Abstract
There is little doubt that hydrodynamic flow has been observed in heavy ion collisions at the LHC and RHIC, mainly based on results on azimuthal anisotropies, but also on particle spectra of identified particles, perfectly compatible with hydrodynamic expansions. Surprisingly, in p-Pb collisions one observes a very similar behavior. So do we see flow even in p-Pb? We will try to answer this question.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies