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physics.space-ph2026
Are the Parker and Focused Transport Equations Equivalent for Galactic Cosmic Ray Modulation?
J. P. van den Berg, N. E. Engelbrecht, R. D. Strauss
The Parker transport equation (TPE) has been the equation of choice for the past 60 years in studies of galactic cosmic ray (GCR) modulation. Conversely, the focused TPE describes…
physics.space-ph2024
An Evaluation of Different Numerical Methods to Calculate the Pitch-angle Diffusion Coefficient from Full-orbit Simulations: disentangling a rope of sand
J. P. van den Berg, P. L. Els, N. E. Engelbrecht
The pitch-angle diffusion coefficient quantifies the effect of pitch-angle scattering on charged particles propagating through turbulent magnetic fields and is a key ingredient in…