Energetic Particles & Transport Acceleration Mechanisms Large-scale kinetic simulations that explore different acceleration mechanisms. Solar Flares Multi-scale modeling that connects simulations and solar flare X-ray/radio observations. Solar Energetic Particles Studying the origins and transport of solar energetic particles (SEPs) from flares and CMEs. Reconnection & Turbulence Relativistic Reconnection High-σ reconnection, particle injection, and radiation/polarization diagnostics for astrophysical plasmas. Plasma Turbulence Energy dissipation and particle transport in plasma turbulence across heliophysics regimes. Reconnection Rate Model Analytical and PIC-informed reconnection rate scaling model in kinetic and MHD systems.