Causal viscous hydrodynamics for central heavy-ion collisions - INSPIRE

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Causal viscous hydrodynamics for central heavy-ion collisions

Rudolf Baier
(
- Bielefeld U.
)
,
Paul Romatschke
(
- Washington U., Seattle
)

Oct, 2006

15 pages

Published in:

Eur.Phys.J.C 51 (2007) 677-687

e-Print:

nucl-th/0610108 [nucl-th]

DOI:

10.1140/epjc/s10052-007-0308-5

Report number:

BI-TP-2006-39,
INT-PUB-06-18

View in:

ADS Abstract Service

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Abstract:

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 hydrodynamic equations. It is shown that correlation functions of fluctuations provide stringent test cases for any such numerical algorithm. Passing these tests, we study the effects of viscosity on the temperature profile in central heavy-ion collisions. Also, we find that it is possible to counter-act the effects of viscosity to some extent by re-adjusting the initial conditions. However, viscous corrections are strongest for high-mass particles, signaling the breakdown of hydrodynamic descriptions for large eta/s.

scattering: heavy ion
central region
hydrodynamics
correlation function: fluctuation
temperature: freeze-out
viscosity
entropy
numerical calculations: Brookhaven RHIC Coll

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