Probing collective behaviour of Heavy Quarks through p_T-differential radial flow v₀(p_T)

2026/07/26 by Salvatore Plumari, Maria Lucia Sambataro, Santosh K. Das +1
#hep-ph

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Abstract

We discuss the p_T-differential radial flow v₀(p_T) of charmed hadrons within a Langevin dynamics coupled to relativistic Boltzmann transport approach in an event-by-event basis. We propose heavy flavour v₀(p_T) as a novel observable to probe the strength of the interaction of heavy quarks with the expanding Quark-Gluon Plasma. By comparing different temperature dependence for the spatial diffusion coefficient D_s(T) we show that the v₀(p_T) keep a strong sensitivity to the heavy-quark transport coefficients at intermediate p_T. At low p_T, the observable is also sensitive to hadronization where we observe a larger v₀(p_T) for Λ_c baryons than for D mesons.

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