The $v^{1/3}_{3}/v^{1/2}_{2}$ ratio in PbAu collisions at $\sqrt{s_{\mathrm{NN}}} = $ 17.3 GeV

• DOI: 10.48550/arxiv.2402.10895
• Publication Date: 2024-02-16
• Authors: D. Adamová; G. Agakishiev; A. Andronic; D. Antończyk; H. Appelshäuser; V. V. Belaga; J. Bielčíková; P. Braun‐Munzinger; O. Busch; A. Cherlin; S. Damjanović; T. Dietel; L. Dietrich; A. Drees; Werner Dubitzky; ShinIchi Esumi; K. Filimonov; K. Fomenko; Z. Fraenkel; C. Garabatos; P. Glässel; G. Hering; J. Holeczek; M. Kalisky; G. Krobath; V. Kushpil; Axel Maas; Ana Maria Marin; J. Milošević; D. Miśkowiec; Y. Panebrattsev; Zuzana Paulínyová; O. Petchenova; V. Petráček; S. Radomski; J. Rak; I. Ravinovich; P. Řehák; H. Sako; W. Schmitz; S. Schuchmann; S. N. Sedykh; S. Shimansky; J. Stachel; M. Šumbera; H. Tilsner; I. Tserruya; G. Tsiledakis; J. P. Wessels; T. Wienold; J.P. Wurm; S. Yurevich; V. I. Yurevich
• Keywords: FOS: Physical sciences; Nuclear Experiment (nucl-ex); info:eu-repo/classification/ddc/530; Nuclear Experiment; 530

The Fourier harmonics, $v_2$ and $v_3$ of negative pions are measured at center-of-mass energy per nucleon pair $\sqrt{s_{\mathrm{NN}}}$= 17.3 GeV around midrapidity by the CERES/NA45 experiment CERN SPS in 0--30% central PbAu collisions with a mean centrality 5.5%. analysis is performed two bins as function transverse momentum $\mathrm{p_{\mathrm{T}}}$ from 0.05 GeV/$c$ to more than 2 GeV/$c$. This first measurement $v^{1/3}_{3}/v^{1/2}_{2}$ ratio energies. For above 0.5 GeV/$c$, nearly flat accordance hydrodynamic prediction previously observed ATLAS ALICE experiments much higher LHC results also compared SMASH-vHLLE hybrid model predictions.