Multiplicity dependence of (multi)strange hadrons in oxygen-oxygen collisions at $\sqrt{s_{\mathrm{NN}}}=7$ TeV using EPOS4 and AMPT

Abstract

It is anticipated that the Large Hadron Collider (LHC) will collect data from oxygen-oxygen ($O+O$) collisions at a center-of-mass energy of $\sqrt{s_{\mathrm{NN}}}$ = 7 TeV to explore the effects observed in high multiplicity proton-proton ($p+p$) and proton-lead ($p+pb$) collisions that closely related to lead-lead ($Pb+Pb$) 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 $O+O$ 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 ($p_T$) spectra, rapidity density distributions ($dN/dy$), particle yield ratios, and $p_T$-differential ratios of (multi)strange hadrons produced in $O+O$ collisions at $\sqrt{s_{\mathrm{NN}}}$ = 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 $p+p$, $p+pb$, and $Pb+Pb$ collisions.

9 pages, 6 figures

References in corpus (15)

• Fully integrated transport approach to heavy ion reactions with an intermediate hydrodynamic stage
• Coalescence Models For Hadron Formation From Quark Gluon Plasma
• Core-Corona Separation in Ultra-Relativistic Heavy Ion Collisions
• Elliptic and triangular flow in p+Pb and peripheral Pb+Pb collisions from parton scatterings
• Further developments of a multi-phase transport model for relativistic nuclear collisions
• Strangeness production from SPS to LHC
• Long-range azimuthal correlations in proton-proton and proton-nucleus collisions from the incoherent scattering of partons
• Unified description of hadron yield ratios from dynamical core-corona initialization
• Core-corona procedure and microcanonical hadronization to understand strangeness enhancement in proton-proton and heavy ion collisions in the EPOS4 framework
• Glauber Monte Carlo predictions for ultra-relativistic collisions with ${}^{16}\mathrm{O}$
• Interplay between core and corona components in high-energy nuclear collisions
• Predictions on global properties in O+O collisions at the Large Hadron Collider using a multi-phase transport model
• Enhanced production of strange baryons in high energy nuclear collisions from a multiphase transport model
• Characterizing nuclear modification effects in high-energy O-O collisions at energies available at the CERN Large Hadron Collider: A transport model perspective
• Dynamics of identified particles production in oxygen-oxygen collisions at \sqrt{s_{\mathrm{NN}} = 7 TeV using EPOS4