Breaking of factorization of two-particle correlations in hydrodynamics
Breaking of factorization of two-particle correlations in hydrodynamics
The system formed in ultrarelativistic heavy-ion collisions behaves as a nearly perfect fluid. This collective behavior is probed experimentally by two-particle azimuthal correlations, which are typically averaged over the properties of one particle in each pair. In this Rapid Communication, we argue that much additional information is contained in the …