Probing the QGP through p_T-differential radial flow of heavy quarks

2025/10/22 by Maria Lucia Sambataro, Salvatore Plumari, Sambataro, Maria Lucia +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2510.19448

openalex publication_date 2025/10/22 · openalex created_date 2025/10/24 · openalex updated_date 2026/07/28

Abstract

We introduce the p_T-differential radial flow v₀(p_T) in the heavy-quark sector. Within an event-by-event Langevin framework, we show that this observable exhibits a strong sensitivity to the heavy quark-bulk interaction. It provides a powerful and novel tool to constrain the transport coefficients of heavy quarks in the QGP and, more generally, to assess the strength of the interaction of a Brownian particle in an expanding bulk medium. The results further indicate that heavy quarks exhibit collective behavior driven by the isotropic expansion of the QGP in heavy-ion collisions and, at low p_T, it offers a marked signature of the heavy quark hadronization mechanism.

Related

• Probing collective behaviour of Heavy Quarks through p_T-differential radial flow v₀(p_T)
• Study of collective phenomena via the production of heavy quarks and quarkonia in hadronic collisions
• Perturbative and non-perturbative interactions between heavy quarks and quark-gluon plasma within a unified approach
• Heavy Quark Diffusion as a Probe of the Quark-Gluon Plasma
• Heavy flavor transport in the QGP medium