Diffusion or bounce back in relativistic heavy-ion collisions?

Details Diffusion or bounce back in relativistic heavy-ion collisions? Diffusion or bounce back in relativistic heavy-ion collisions?

2008-03-12

arxiv.org/abs/0803.1727v1

Eur.Phys.J.A36:111-117,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 2 figures

Scientific paper

10.1140/epja/i2007-10550-y

The time evolution of pseudorapidity distributions of produced charged hadrons in d+Au collisions at sqrt(s_NN) = 200 GeV is investigated. Results of a nonequilibrium-statistical Relativistic Diffusion Model with three sources are compared with a macroscopic "bounce back" model that does not allow for statistical equilibration at large times, but instead leads to motion reversal. When compared to the data, the results of the diffusion approach are more precise, thus emphasizing that the system is observed to be on its way to thermal equilibrium.

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