https://doi.org/10.1140/epja/i2017-12228-3
Regular Article - Theoretical Physics
Relativistic diffusion model with nonlinear drift
Institut für Theoretische Physik der Universität Heidelberg, Philosophenweg 16, D-69120, Heidelberg, Germany
* e-mail: wolschin@uni-hd.de
Received:
3
November
2016
Accepted:
10
February
2017
Published online:
27
February
2017
The nonequilibrium-statistical Relativistic Diffusion Model (RDM) is extended to include a nonlinear drift term such that its stationary solution agrees exactly with the thermal equilibrium distribution. The underlying Fokker-Planck equation cannot be solved analytically in this case and we present a numerical solution in rapidity space. The difference to the analytical RDM solution is discussed, and the numerical result is compared to data for net-proton rapidity distributions in 
GeV PbPb and 200 GeV AuAu collisions.
© SIF, Springer-Verlag Berlin Heidelberg, 2017
