Example for the parallel (upper panel) and perpendicular (lower panel) diffusion coefficients. During the ballistic phase, the diffusion coefficients grow almost linearly in time, whereas for late times the parallel diffusion coefficient becomes almost constant. For the parallel diffusion coefficient, the transition is marked for later use by the vertical dashed line. In addition, the dot-dashed line illustrates a late superdiffusive phase with κ_∥ ∝ t^0.31, which has been observed for Alfvénic turbulence due to stochastic acceleration of the particles (cf. Tautz 2010b). Here, in contrast, a magnetostatic model is used, for which the solid line is found. The perpendicular diffusion coefficients, in contrast, become slightly subdiffusive in agreement with earlier results. For later use, the late-time behavior is fitted to a power law. The slope sensitively depends on the properties of the magnetic turbulence (see Tautz & Shalchi 2010) and the particle rigidity (here, R = 10^-2).