Propagation Effects on the Spectrum Resulting From the 12 July 2012 CME, a Coupled MHD and Focused Transport Simulation Effort.

Our study aims to probe the role of propagation effects and pre-event spectra on the spectral break energy and slopes resulting from the 12 July 2012 CME. The Energetic Particle Radiation Environment Module (EPREM), a focused transport code solved in the Lagrangian frame, is coupled to Enlil output for this event. We step through different pre-event spectra, specifications for the scattering mean free path, and cross-field diffusion efficiency to explore the effect on the results at various observers. Our results are compared to observations at Earth, Stereo A, and Stereo B.