TY - JOUR
T1 - Multiplicity dependence of (multi-)strange hadrons in oxygen-oxygen collisions at sNN=7 TeV using EPOS4 and AMPT
AU - Ashraf, M. U.
AU - Khan, A. M.
AU - Singh, J.
AU - Nigmatkulov, G.
AU - Roch, H.
AU - Kabana, S.
N1 - Publisher Copyright:
© 2025 The Physical Society of the Republic of China (Taiwan).
PY - 2025/12
Y1 - 2025/12
N2 - 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 s NN = 7 TeV to explore the effects observed in high multiplicity proton-proton ( p + p ) and proton-lead ( p + P b ) collisions that are closely related to lead-lead ( P b + P b ) collisions. These effects include azimuthal asymmetries in particle production and 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 ( d N / d y ), particle yield ratios, and p T -differential ratios of (multi-)strange hadrons produced in O + O collisions at s NN = 7 TeV using AMPT and EPOS4 models are presented. AMPT focuses on partonic and hadronic interactions, while EPOS4 incorporates hydrodynamics. Stronger radial flow in EPOS4 is also observed compared to AMPT. Both models predict the final-state multiplicity overlap with p + p , p + P b , and P b + P b collisions.
AB - 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 s NN = 7 TeV to explore the effects observed in high multiplicity proton-proton ( p + p ) and proton-lead ( p + P b ) collisions that are closely related to lead-lead ( P b + P b ) collisions. These effects include azimuthal asymmetries in particle production and 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 ( d N / d y ), particle yield ratios, and p T -differential ratios of (multi-)strange hadrons produced in O + O collisions at s NN = 7 TeV using AMPT and EPOS4 models are presented. AMPT focuses on partonic and hadronic interactions, while EPOS4 incorporates hydrodynamics. Stronger radial flow in EPOS4 is also observed compared to AMPT. Both models predict the final-state multiplicity overlap with p + p , p + P b , and P b + P b collisions.
KW - Heavy-ion collisions
KW - Multiplicity
KW - Quark gluon plasma
KW - Strangeness
UR - https://www.scopus.com/pages/publications/105021112032
U2 - 10.1016/j.cjph.2025.10.001
DO - 10.1016/j.cjph.2025.10.001
M3 - Article
AN - SCOPUS:105021112032
SN - 0577-9073
VL - 98
SP - 768
EP - 777
JO - Chinese Journal of Physics
JF - Chinese Journal of Physics
ER -