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Fig. 1


Result of a toy model wave-particle resonance after two gyration periods with a wave amplitude of δB/B0 = 0.1. The pitch-angle scattering is presented in terms of change in Δμ dependent on the particles intial μ0. Each dot represents an individual particle. The theoretical, quasilinear prediction of the maximal change in μ by Eq. (32) deviates clearly from the observed scattering. This type of plot is hereafter denoted as scatter plot.

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