Pitch Angle Diffusion of Energetic Electrons by Elf Whistler Mode Wave Considering Mid Latitudes

Wave particle interaction between elf waves and cyclotron resonant electrons has been studied & pitch angle diffusion is calculated at different pitch angles. We consider L-values of mid latitudes (2.0, 2.4, and 3.0). The diffusive equilibrium ionospheric model has been considered and theory of Summer et al (2007) has been extended. We find that high pitch angles are more efficient to precipitate resonant electrons into the lower ionosphere. In the same way the high frequency waves are more able to diffuse cyclotron resonant electron into the loss cone. The results are in agreement with experimental values.