Viscous Hydrodynamic Evolution with Non-Boost Invariant Flow for the Color Glass Condensate

Abstract

The Large Hadron Collider (LHC) experiments have revealed that the predictions of the color glass condensate (CGC) tend to underestimate the multiplicity at mid-rapidity. We develop and estimate a full second-order viscous hydrodynamic model for the longitudinal expansion to find that the CGC rapidity distributions are visibly deformed during the hydrodynamic stage due to the interplay between the entropy production and the entropy flux to forward rapidity. The results indicate the importance of viscous hydrodynamic evolution with non-boost invariant flow for understanding the CGC in terms of the heavy ion collisions.

4 pages, 2 figures - To appear in the conference proceedings for Quark Matter 2011, May 23 - May 28, Annecy, France

References in corpus (8)

• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• The QCD equation of state with dynamical quarks
• Charged-particle multiplicity density at mid-rapidity in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Effects of fluctuations on the initial eccentricity from the Color Glass Condensate in heavy ion collisions
• Eccentricity fluctuations from the Color Glass Condensate at RHIC and LHC
• Eccentricity fluctuation effects on elliptic flow in relativistic heavy ion collisions
• Relativistic Dissipative Hydrodynamic Equations at the Second Order for Multi-Component Systems with Multiple Conserved Currents
• Longitudinal Viscous Hydrodynamic Evolution for the Shattered Colour Glass Condensate

Cited by in corpus (2)

• Dissipative Hydrodynamic Effects on Baryon Stopping
• Scaling behaviour of $dN/dy$ in high-energy collisions