Comparison between SQLT approach and particle simulation of the scattering coefficients D_αα for the low gridsize, peak . For μ > 0.6, the SQLT coefficient is comparable to the particle simulations for both the background turbulence and the driven stage. Due to the tilt (see Fig. 11) the particles’ D_αα of the decay stage does not show a structure at the resonant μ₀. Thus, the particle simulation curve does not match the SQLT model nicely.