The shape of differential radial flow $v_0(p_T)$, not its zero-crossing, carries physical information

Somadutta Bhatta, Aman Dimri, Jiangyong Jia

Radial flow, a key collective phenomenon in heavy-ion collisions, manifests itself through event-by-event fluctuations of transverse-momentum ($p_{\mathrm{T}}$) spectra. The $p_{\m…