A1 Journal article (refereed)
Anisotropic flow of identified hadrons in Xe-Xe collisions at √sNN = 5.44 TeV (2021)

ALICE collaboration. (2021). Anisotropic flow of identified hadrons in Xe-Xe collisions at √sNN = 5.44 TeV. Journal of High Energy Physics, 2021(10), Article 152. https://doi.org/10.1007/JHEP10(2021)152

JYU authors or editors

Publication details

All authors or editors: ALICE collaboration

Journal or series: Journal of High Energy Physics

ISSN: 1126-6708

eISSN: 1029-8479

Publication year: 2021

Volume: 2021

Issue number: 10

Article number: 152

Publisher: Springer

Publication country: Germany

Publication language: English

DOI: https://doi.org/10.1007/JHEP10(2021)152

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/79062

Web address of parallel published publication (pre-print): https://arxiv.org/abs/2107.10592

Abstract

Measurements of elliptic (v2) and triangular (v3) flow coefficients of π±, K±, p+p¯, K0S, and Λ+Λ¯ obtained with the scalar product method in Xe-Xe collisions at √sNN = 5.44 TeV are presented. The results are obtained in the rapidity range |y| < 0.5 and reported as a function of transverse momentum, pT, for several collision centrality classes. The flow coefficients exhibit a particle mass dependence for pT < 3 GeV/c, while a grouping according to particle type (i.e., meson and baryon) is found at intermediate transverse momenta (3 < pT < 8 GeV/c). The magnitude of the baryon v2 is larger than that of mesons up to pT = 6 GeV/c. The centrality dependence of the shape evolution of the pT-differential v2 is studied for the various hadron species. The v2 coefficients of π±, K±, and p+p¯ are reproduced by MUSIC hydrodynamic calculations coupled to a hadronic cascade model (UrQMD) for pT < 1 GeV/c. A comparison with vn measurements in the corresponding centrality intervals in Pb-Pb collisions at √sNN = 5.02 TeV yields an enhanced v2 in central collisions and diminished value in semicentral collisions.

Keywords: particle physics; nuclear physics; quark-gluon plasma

Contributing organizations

Ministry reporting: Yes

VIRTA submission year: 2021

JUFO rating: 2