Relativistic diffusion model |
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Authors: | G. Wolschin |
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Affiliation: | (1) Keplerstrasse 30, D-69120 Heidelberg, Germany, DE |
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Abstract: | Evidence is presented that diffusion drives colliding many-particle systems at relativistic energies from the initial δ–functions in rapidity towards the equilibrium distribution. Analytical solutions of a linear Fokker-Planck equation represent rapidity spectra for participant protons in central heavy-ion collisions at SPS-energies accurately. Thermal equilibrium in the interaction region is not attained, nonequilibrium features persist and can account for the broad rapidity spectra. Received: 24 November 1998 / Revised version: 20 February 1999 |
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Keywords: | PACS:25.75-q Relativistic heavy-ion collisions – 24.60.Ky Fluctuation phenomena – 24.10.Jv Relativistic models |
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