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arXiv · 1509.05818

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

U. Heinz·D. Bazow·G. S. Denicol·M. Martinez·M. Nopoush·J. Noronha·R. Ryblewski·M. Strickland
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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.

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U. Heinz, D. Bazow, G. S. Denicol, M. Martinez, M. Nopoush, J. Noronha, R. Ryblewski, M. Strickland. 2015-09-18. Exact solutions of the Boltzmann equation and optimized hydrodynamic approaches for relativistic heavy-ion collisions. https://doi.org/10.1016/j.nuclphysbps.2016.05.042

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