arXiv:1509.05818·v1·Nuclear Theory
Exact solutions of the Boltzmann equation and optimized hydrodynamic approaches for relativistic heavy-ion collisions
U. Heinz (Ohio State)🇺🇸 · D. Bazow (Ohio State)🇺🇸 · G.S. Denicol (McGill)🇨🇦 · M. Martinez (Ohio State)🇺🇸 · M. Nopoush (Kent State)🇺🇸 · J. Noronha (U. Sao Paulo)🇧🇷 · R. Ryblewski (Krakow)🇵🇱 · M. Strickland (Kent State)🇺🇸
Abstract
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. Recently discovered exact solutions of the relativistic Boltzmann equation in anisotropically expanding systems provide a powerful testbed for such improved hydrodynamic approximations. We present the latest status of our quest for a formulation of relativistic viscous fluid dynamics that is optimized for applications to relativistic heavy-ion collisions.
Comments: 4 pages, 1 figure. Talk given at Hard Probes 2015. To appear in the proceedings