Relativistic shock waves and Mach cones in viscous gluon matter

To investigate the formation and the propagation of relativistic shock waves in viscous gluon matter we solve the relativistic Riemann problem using a microscopic parton cascade. We demonstrate the transition from ideal to viscous shock waves by varying the shear viscosity to entropy density ratio n/s. Furthermore we compare our results with those obtained by solving the relativistic causal dissipative fluid equations of Israel and Stewart (IS), in order to show the validity of the IS hydrodynamics. Employing the parton cascade we also investigate the formation of Mach shocks induced by a high-energy gluon traversing viscous gluon matter. For n/s = 0.08 a Mach cone structure is observed, whereas the signal smears out for n/s >=0.32.

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Metadaten
Author:Ioannis Bouras, Etele Molnár, Harri Niemi, Zhe Xu, Andrej El, Oliver Fochler, Francesco Lauciello, Felix Reining, Christian Wesp, Carsten Greiner, Dirk-Hermann Rischke
URN:urn:nbn:de:hebis:30-52039
Document Type:Article
Language:English
Date of Publication (online):02.12.2010
Year of first Publication:2010
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Source:PoS(BORMIO2010)010 ; XLVIII International Winter Meeting on Nuclear Physics, BORMIO2010, January 25-29, 2010 Bormio, Italy
HeBIS PPN:229194656
Institutes:Physik
Frankfurt Institute for Advanced Studies
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
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Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. http://pos.sissa.it/
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen ohne Print on Demand

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