Solar Neutrino Signals and Capture-Annihilation Equilibrium of SU(5) Neutralino Dark Matter

Motivated by IceCube solar searches, we investigate neutralino dark matter in supersymmetric SU(5) with nonuniversal gaugino masses. Combining micrOMEGAs relic abundances with DarkSUSY calculations, we develop a consistent picture of solar neutrino and muon signals from thermal neutralino subcomponents. We identify how local abundance, neutralino composition, and capture-annihilation equilibrium shape these signals beyond simple scaling with the dark matter fraction. Integrated fluxes and representative benchmarks connect these predictions to published IceCube reference limits. Our results provide a framework for interpreting solar searches and assessing the signals of subdominant neutralino dark matter.