Testing the system size dependence of hydrodynamical expansion and thermal particle production with π, K, p, and φ in Xe-Xe and Pb-Pb collisions with ALICE



Bellini, Francesca, Acharya, S, Acosta, FT, Adamova, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z
et al (show 1009 more authors) (2019) Testing the system size dependence of hydrodynamical expansion and thermal particle production with π, K, p, and φ in Xe-Xe and Pb-Pb collisions with ALICE .

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Abstract

We present new results on transverse momentum spectra, integrated yields, and mean transverse momenta of pions, kaons, and protons, as well as of ϕ-mesons for various centrality classes measured in Pb–Pb and Xe–Xe collisions at the LHC. This unique set of data allows us to investigate bulk particle production for very different systems at similar multiplicities. The chemical and kinetic freeze-out parameters are extracted via statistical-thermal and combined blast-wave fits to the data in heavy-ion collisions and are compared to results obtained in pp and p–Pb collisions at similar multiplicities. The evolution of collective-like effects from pp and p–Pb collisions to Xe–Xe and Pb–Pb collisions is further investigated by detailed comparisons to predictions from models.

Item Type: Conference Item (Unspecified)
Uncontrolled Keywords: Identified hadrons yields, particle ratios, phi-meson, thermal fit, hydrodynamics, Xe-Xe, Pb-Pb
Depositing User: Symplectic Admin
Date Deposited: 09 May 2019 11:05
Last Modified: 16 Jun 2026 05:50
DOI: 10.1016/j.nuclphysa.2018.09.082
Open Access URL: https://doi.org/10.1016/j.nuclphysa.2018.09.082
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3040441
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