Authors: Alberto Felix (University of Iowa), Gregory Howes (University of Iowa), Collin Brown (Naval Research Laboratory), Colby Haggerty (University of Hawai'i Manoa)

In collisionless shocks that exceed the first critical mach number you see a certain fraction of incoming particles be reflected at the shock, thus slowing the inflow of plasma and splitting the particles between reflected and transmitted particles. Here we identify and analyze some of the energetic processes affecting these different ion subpopulations within quasiperpendicular shocks. Namely we show how shock drift acceleration causes reflected ions to be accelerated to higher energies while transmitted ions are slowed by the cross shock electric field. We also look at how these processes and their affects are consistent across different shock parameters and how they vary. Our data is taken from a set of simulations generated through the parallel code dHybridR, spanning a range of upstream bulk flow velocities and shock normal angles. We utilize the field-particle correlation technique in order to identify the velocity space signature of these processes. We also utilize velocity space volumes which separate these ion populations and determine the overall change in energy of these populations as a result of these processes.