Particle production and nonlinear diffusion in relativistic systems

Details Particle production and nonlinear diffusion in relativistic systems Particle production and nonlinear diffusion in relativistic systems

2008-09-06

arxiv.org/abs/0809.1190v1

Annalen Phys.17:462-476,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, 4 figures

Scientific paper

10.1002/andp.200810307

The short parton production phase in high-energy heavy-ion collisions is treated analytically as a nonlinear diffusion process. The initial buildup of the rapidity density distributions of produced charged hadrons within tau_p = 0.25 fm/c occurs in three sources during the colored partonic phase. In a two-step approach, the subsequent diffusion in pseudorapidity space during the interaction time of tau_int = 7-10 fm/c (mean duration of the collision) is essentially linear as expressed in the Relativistic Diffusion Model (RDM) which yields excellent agreement with the data at RHIC energies, and allows for predictions at LHC energies. Results for d+Au are discussed in detail.

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