Effects of local event-by-event conservation laws in ultra-relativistic heavy ion collisions at the particlization

Understand

Many simulations of relativistic heavy ion collisions involve the switching from relativistic hydrodynamics to kinetic particle transport.

• This switching entails the sampling of particles from the distribution of energy, momentum and conserved currents provided by hydrodynamics.
• Usually this sampling ensures the conservation of these quantities only on the average, i.e.
• the conserved quantities may actually fluctuate among the sampled particle configurations and only their averages over many such configurations agree with their values from hydrodynamics.