Establishing the range of applicability of hydrodynamics in high-energy collisions

VE Ambruş, S Schlichting, C Werthmann - Physical Review Letters, 2023 - APS
We simulate the space-time dynamics of high-energy collisions based on a microscopic
kinetic description in the conformal relaxation time approximation, in order to determine the …

Hydrodynamic flow in small systems or:“How the heck is it possible that a system emitting only a dozen particles can be described by fluid dynamics?”

U Heinz, JS Moreland - Journal of Physics: Conference Series, 2019 - iopscience.iop.org
The" unreasonable effectiveness" of relativistic fluid dynamics in describing high energy
heavy-ion and even proton-proton collisions will be demonstrated and discussed. Several …

Relativistic viscous hydrodynamics for heavy-ion collisions: A comparison between the Chapman-Enskog and Grad methods

RS Bhalerao, A Jaiswal, S Pal, V Sreekanth - Physical Review C, 2014 - APS
Derivations of relativistic second-order dissipative hydrodynamic equations have relied
almost exclusively on the use of Grad's 14-moment approximation to write f (x, p), the …

Bulk viscosity effects in event-by-event relativistic hydrodynamics

J Noronha-Hostler, GS Denicol, J Noronha… - Physical Review C …, 2013 - APS
Bulk viscosity effects on the collective flow harmonics in heavy-ion collisions are
investigated, on an event-by-event basis, using a newly developed 2+ 1 Lagrangian …

Causal viscous hydrodynamics for central heavy-ion collisions

R Baier, P Romatschke - The European Physical Journal C, 2007 - Springer
We study causal viscous hydrodynamics in the context of central relativistic heavy-ion
collisions and provide details of a straightforward numerical algorithm to solve the …

Initial-state geometry and the role of hydrodynamics in proton-proton, proton-nucleus, and deuteron-nucleus collisions

A Bzdak, B Schenke, P Tribedy, R Venugopalan - Physical Review C—Nuclear …, 2013 - APS
We apply the successful Monte Carlo Glauber and IP-Glasma initial-state models of heavy-
ion collisions to the much smaller size systems produced in proton-proton, proton-nucleus …

Constraining relativistic viscous hydrodynamical evolution

M Martinez, M Strickland - Physical Review C—Nuclear Physics, 2009 - APS
We show that by requiring positivity of the longitudinal pressure it is possible to constrain the
initial conditions one can use in second-order viscous hydrodynamical simulations of …

Dissipative hydrodynamics and heavy-ion collisions

R Baier, P Romatschke, UA Wiedemann - Physical Review C—Nuclear …, 2006 - APS
Recent discussions of RHIC data emphasized the exciting possibility that the matter
produced in nucleus-nucleus collisions shows properties of a near-perfect fluid. Here, we …

Applicability of causal dissipative hydrodynamics to relativistic heavy ion collisions

P Huovinen, D Molnar - Physical Review C—Nuclear Physics, 2009 - APS
We utilize nonequilibrium covariant transport theory to determine the region of validity of
causal Israel-Stewart (IS) dissipative hydrodynamics and Navier-Stokes (NS) theory for …

Relativistic fluid dynamics in and out of equilibrium: and applications to relativistic nuclear collisions

P Romatschke, U Romatschke - 2019 - books.google.com
The past decade has seen unprecedented developments in the understanding of relativistic
fluid dynamics in and out of equilibrium, with connections to astrophysics, cosmology, string …