New insight into the formation mechanism of the energetic particle reservoirs in the heliosphere

The concept of energetic particle reservoirs, essentially based on the assumption presence outer reflecting boundaries/magnetic mirrors or diffusion barriers (deterministic) rather than effect diffusive propagation (stochastic) in magnetic turbulence, has been used for decades to describe space-extended decay phases events within fields space physics, solar and plasma physics. Using five-dimensional time-dependent Fokker-Planck transport equation simulations, this work we demonstrate that so-called reservoirs are naturally explained quantitatively reproduced by processes turbulent fields, without invoking hypothesis boundaries. Our results strongly suggest "reservoir" (based deterministic structure) should be renamed "flood" stochastic diffusion), which symbolizes an authentic shift thinking pragmatic rationale studies particles relevant phenomena heliophysics astrophysics.