Is hadronic flow produced in p-Pb collisions at the Large Hadron Collider?

摘要

Using the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model, we investigate the azimuthal correlations in p-Pb collisions at {formula} TeV. It is shown that the simulated hadronic p-Pb system can not generate the collective flow signatures, but mainly behaves as a non-flow dominant system. However, the characteristic V2(p_T) massordering of pions, kaons and protons is observed in UrQMD simulations, which is the consequence of hadronic interactions and not necessarily associated with strong fluid-like expansions.