3-dimensional flow analysis: A novel tool to study the collision geometry and the Equation-of-State

2022/07/06 by Tom Reichert, Reichert, Tom, Jan Steinheimer +3 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Quantum Chromodynamics and Particle Interactions #Theoretical and Computational Physics

paper · pdf · doi:10.48550/arxiv.2207.02594

openalex publication_date 2022/07/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We propose to extend the commonly known flow analysis in the transverse p_x-p_y plane to novel flow coefficients based on the angular distribution in the p_x-p_z and p_y-p_z planes. The new flow coefficients, called u_n and w_n (in addition to v_n), turn out to be also highly sensitive to the nuclear Equation-of-State and can be used to explore the EoS in more detail than is possible using only v_n. As an example to quantify the effect of the EoS, the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model is used to investigate 20-30% central Au+Au collisions at E_lab=1.23~AGeV.

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