From RHIC to LHC: a relativistic diffusion approach

Abstract

We investigate stopping and particle production in heavy-ion collisions in a Relativistic Diffusion Model (RDM). Using three sources for particle production, the energy-and centrality dependence of rapidity distributions of net protons, and pseudorapidity distributions of charged hadrons in heavy systems at RHIC energies are precisely reproduced in the analytical model. The transport coefficients are then extrapolated from Au + Au at RHIC energies ( √ s NN =19.6 -200 GeV) to Pb + Pb at LHC energies of √ s NN = 5.52 TeV. Rapidity distributions for net protons, and pseudorapidity spectra for produced charged particles are obtained and discussed in a three-sources model at LHC energies.

Summary talk for ISMD 06

“…Koide [24] and Wolschin [25] presented the state of the art for attempts to include the effect of viscosity into relativistic hydrodynamics. This causes problems with either negative entropy productions or with causality.…”