Pitch angle distribution in solar energetic particle events

Abstract

The transport of solar energetic particles (SEPs) in the interplanetary space is mainly described by the competition between two processes: adiabatic focusing and pitch-angle scattering off irregularities of the mean large-scale interplanetary magnetic field. The purpose of this work is the analysis of the particle directional intensities measured during 2011 November 3 and 2010 August 14 SEP events in order to extract information of the transport processes undergone by the particles. This work involves the use of in-situ particle and solar wind plasma measurements from the Wind spacecraft.