Multiplicity dependence of (multi)strange hadrons in oxygen-oxygen collisions at TeV using EPOS4 and AMPT
arXiv:2406.04096 · doi:10.1016/j.cjph.2025.10.001
Abstract
It is anticipated that the Large Hadron Collider (LHC) will collect data from oxygen-oxygen () collisions at a center-of-mass energy of = 7 TeV to explore the effects observed in high multiplicity proton-proton () and proton-lead () collisions that closely related to lead-lead () collisions. These effects include azimuthal asymmetries in particle production, as well as variations in the abundances and momentum distributions across different hadron species, which are indicative of collective particle production mechanisms induced by the interactions in the presence of a QGP. The upcoming data on collisions at the LHC are expected to constrain the model parameters and refine our understanding of theoretical models. In this work, the predicted transverse momentum () spectra, rapidity density distributions (), particle yield ratios, and -differential ratios of (multi)strange hadrons produced in collisions at = 7 TeV using AMPT and EPOS4 models are presented. AMPT focuses on preformed hadronic interactions, while EPOS4 incorporates a QGP phase. Stronger radial flow in EPOS4 as compared to AMPT is also observed. AMPT incorporates some flow effects, but the implementation of full hydrodynamic flow in EPOS4 appears to be significantly more effective in reproducing the existing experimental data. Both models predict the final state multiplicity overlap with , , and collisions.
arXiv comment9 pages, 6 figures
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