On the study of new proxies for second order cumulants of conserved charges in heavy-ion collisions with EPOS4

• DOI: 10.48550/arxiv.2403.02306
• Publication Date: 2024-03-04
• Authors: Johannès Jahan; Claudia Ratti; M. Stefaniak; K. Werner
• Keywords: Cumulant; Baryon number; Conserved quantity

Proxies for cumulants of baryon number $B$, electric charge $Q$ and strangeness $S$ are usually measured in heavy-ion collisions via moments net-number distribution given hadronic species. Since these conserved charges expected to be sensitive the existence a critical point phase diagram nuclear matter, it is crucial ensure that proxies used as substitutes close them possible. Hence, we use EPOS4 framework generate Au+Au at several collision energies RHIC Beam Energy Scan. We compute $2^\text{nd}$ order net-cumulants $\pi$, $K$ $p$, which experimental data has been published, well corresponding cumulants. then compare with proxies, defined previous lattice QCD Hadron Resonance Gas model studies, shown reproduce more accurately their associated investigate impact re-scatterings occurring late evolution system on quantities, amount signal actually originating from bulk medium endures transition.