ALICE measurements of flow coefficients and their correlations in small (pp and p–Pb) and large (Xe–Xe and Pb–Pb) collision systems

Many observables which are used as a signature of the collective effects in heavy-ion collisions when measured in high multiplicity pp and pA interactions reveal a very similar behaviour. We will present first measurements of different order flow coefficients and their magnitude correlations for dat...

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Bibliographic Details
Published in:Nuclear physics. A 2019-02, Vol.982, p.487-490
Main Author: Gajdošová, Katarína
Format: Article
Language:English
Subjects:
ALICE
anisotropic flow
cumulants
LHC
small systems
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Summary:Many observables which are used as a signature of the collective effects in heavy-ion collisions when measured in high multiplicity pp and pA interactions reveal a very similar behaviour. We will present first measurements of different order flow coefficients and their magnitude correlations for data collected by ALICE during the LHC Run 2 operation, which includes pp collisions at s=13TeV, p–Pb at sNN=5.02TeV, Xe–Xe at sNN=5.44TeV and Pb–Pb collisions at sNN=5.02TeV. Such a broad spectrum of colliding systems with different energies and wide range of multiplicity allow for detailed investigation of their collision dynamics. The measurements are based on a newly developed subevent technique, which was proven to be particularly important for studies in small systems. The results provide an important insight into the nature of collective phenomena in different collision systems.
ISSN:0375-9474
DOI:10.1016/j.nuclphysa.2018.09.006