Relativistic diffusion model and analysis of large transverse momentum distributions
نویسندگان
چکیده
Abstract. In order to describe large transverse momentum (pT ) distributions observed in high energy nucleus-nucleus collisions, a stochastic model in the three dimensional rapidity space is introduced. The fundamental solution of the radial symmetric diffusion equation is Gaussianlike in radial rapidity. We can also derive a pT or radial rapidity distribution function, where a distribution of emission center is taken into account. It is applied to the analysis of observed large pT distributions of charged particles. It is shown that our model approaches to a power function of pT in the high transverse momentum limit.
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