Evidence for Flow from Hydrodynamic Simulations of p-Pb Collisions at 5.02 TeV from v2 Mass Splitting

We show that a fluid dynamical scenario, already well tested against identified particle p(t) spectra, describes quantitatively the observed mass splitting of the elliptical flow coefficients v(2) for pions and protons. This provides a strong argument in favor of the existence of a fluid dynamical expansion in p-Pb collisions at 5.02 TeV.