pitch-angle distribution

Mourenas, D., Artemyev, A., Agapitov, O. V., Krasnoselskikh, V., & Li, W. (2014). Approximate analytical solutions for the trapped electron distribution due to quasi-linear diffusion by whistler-mode waves. Journal Of Geophysical Research: Space Physics. http://doi.org/10.1002/2014JA020443 (Original work published November 2014)