Exact solutions of the Boltzmann equation and optimized hydrodynamic approaches for relativistic heavy-ion collisions

Understand

Several recent results are reported from work aiming to improve the quantitative precision of relativistic viscous fluid dynamics for relativistic heavy-ion collisions.

• The dense matter created in such collisions expands in a highly anisotropic manner.
• Due to viscous effects this also renders the local momentum distribution anisotropic.
• Optimized hydrodynamic approaches account for these anisotropies already at leading order in a gradient expansion.