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标题：Viscous hydrodynamic deformation in rapidity distributions of the color glass condensate
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作者：A. Monnai ; T. Hirano
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2011
卷号：2011
期号：WPCF2011
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We investigate shear and bulk viscous hydrodynamic deformation on the rapidity distributions of the color glass condensate (CGC) in the relativistic heavy ion collisions at the RHIC and the LHC with a novel numerical and theoretical scheme. The results show that the rapidity distributions of the CGC are clearly deformed due to the entropy flux to forward rapidity and the entropy production from viscosity. The hydrodynamic effects tend to make the distribution steeper at the LHC than at the RHIC. This could be a candidate explanation for the rather surprising excess of multiplicity in the LHC data compared with the bare CGC predictions. The hydrodynamic parameter dependences are also discussed for more quantitative analyses.