Study of anisotropic flow of heavy hadrons in Au + Au collisions at √s_NN = 200 GeV using HYDJET++ framework

2025/06/14 by Sunidhi Saxena, Gauri Devi, Saxena, Sunidhi +5
Mathematics · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #Stochastic processes and statistical mechanics

paper · pdf · doi:10.48550/arxiv.2506.12373

openalex publication_date 2025/06/14 · openalex created_date 2025/10/13 · openalex updated_date 2026/07/28

Abstract

A comprehensive study of the anisotropic flow of heavy hadrons (D⁰, D^±, and Λ_c) in Au + Au collisions at √s_NN = 200 GeV using the HYDJET++ model is presented. This study aims to explore the collective behavior and thermalization of charm hadrons at RHIC energy. The modeling of anisotropic flow is performed using a centrality-dependent parameterization of anisotropic parameters. Our model results are consistent with STAR experimental results up to p_T = 4 GeV/c. It captures the centrality-dependent shifts of the flow peak towards lower p_T as collisions become more peripheral. This shift is attributed to the weaker radial flow in peripheral collisions. The model also reproduces important features such as the number-of-constituent-quark scaling, mass ordering, and baryon-meson grouping, all consistent with experimental observations. Furthermore, we present comparisons with other models, like DUKE, SUBATECH, TAMU, and AMPT. Overall, our results highlight the efficacy of HYDJET++ in describing the collective dynamics of heavy-flavor hadrons in the quark-gluon plasma medium.

Citations

• Collective phenomena in non-central nuclear collisions
• Fast hadron freeze-out generator
• QCD Predictions for Charm and Bottom Production at RHIC
• Hydrodynamic description of ultrarelativistic heavy-ion collisions
• Microscopic models for ultrarelativistic heavy ion collisions
• Two-particle interferometry for noncentral heavy-ion collisions

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• Anisotropic Flow at the Relativistic Heavy Ion Collider
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