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Time evolution of relativistic d + Au and Au + Au collisions
Author(s) -
Wolschin G.,
Biyajima M.,
Mizoguchi T.,
Suzuki N.
Publication year - 2006
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.200510182
Subject(s) - physics , lorentz covariance , massless particle , mathematical physics , graviton , theoretical physics , brst quantization , lorentz transformation , quantum field theory , formalism (music) , gauge theory , classical mechanics , gravitation , art , musical , visual arts
The evolution of charged‐particle production in collisions of heavy ions at relativistic energies is investigated as function of centrality in a nonequilibrium‐statistical framework. Precise agreement with recent d + Au and Au + Au data at $\sqrt{s_{NN}}$ = 200 GeV is found in a Relativistic Diffusion Model with three sources for particle production. Only the midrapidity source comes very close to local equilibrium, whereas the analyses of the overall pseudorapidity distributions show that the systems remain far from statistical equilibrium.