An improved treatment of neutral sheet drift in the inner heliosphere

Abstract

Drifts due to the curvature and gradients in the heliospheric magnetic field, as well as along the heliospheric current sheet, have long been known to play a significant role in the transport of galactic cosmic rays. Recently, there has been greater interest in the role these drifts play in the transport of solar energetic particles. This study proposes an approach to modeling particle drift velocities in particle transport codes that, while being relatively simple to implement and computationally inexpensive, also models drift effects accurately across a broader range of energies than previous approaches