In the last few years it has been demonstrated, both by data analysis and by numerical simulations, that the transport of energetic particles in the presence of magnetic turbulence can be superdiffusive rather than normal diffusive (Gaussian). The term ‘superdiffusive’ refers to the mean square displacement of particle positions growing superlinearly with time, as compared to the normal linear growth. The so-called anomalous transport, which in general is comprising both subdiffusion and superdiffusion, has gained growing attention during the last two decades in many fields including laboratory plasma physics, but its serious appreciation in space physics is relatively recent.
With the proposed international team we intend to gather a number of experts on energetic particle transport, with a focus on what could be the main influence of superdiffusion on fundamental processes like diffusive shock acceleration (DSA) and solar energetic particle (SEP) propagation from the Sun to the Earth. Heliospheric, astrophysical, and laboratory plasmas will be considered, and both the theoretical approach and data analysis will be carried out.