Observation of partonic collectivity via $p_{\mathrm{T}}$-differential radial flow fluctuations in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=200$ GeV

Rohit Agarwala, Dipankar Basak, Kalyan Dey

We report the observation of partonic radial collectivity in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=200$~GeV via the $p_{\mathrm{T}}$-differential flow observable $v_0(p_{\mathrm{T}})$ u…