Heavy ion collisions from √s_NN of 62.4 GeV down to 4 GeV in the EPOS4 framework

2024/01/20 by K. Werner, Werner, K., Johannès Jahan +9
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Nuclear physics research studies #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2401.11275

openalex publication_date 2024/01/20 · openalex created_date 2024/01/24 · openalex updated_date 2026/07/28

Abstract

The EPOS4 project is an attempt to construct a realistic model for describing relativistic collisions of different systems, from proton-proton (pp) to nucleus-nucleus (AA), at energies from several TeV per nucleon down to several GeV. We argue that a parallel scattering formalism (as in EPOS4) is relevant for primary scatterings in AA collisions above 4 GeV, whereas sequential scattering (cascade) is appropriate below. We present briefly the basic elements of EPOS4, and then investigate heavy ion collisions from 62.4 GeV down to 4 GeV, to understand how physics changes with energy, studying in particular the disappearance of the fluid component at low energies.

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