Progresses in the dark matter indirect detection

<p indent="0mm">Observations suggest that dark matter constitutes a significant portion of the universe and plays a pivotal role in its evolution. Despite its profound impact, little is known about dark matter beyond its gravitational effects. Unraveling the nature of dark matter could expand the standard model of particle physics and lead to “new physics”. A wide range of dark matter models have been proposed based on observational evidence, with candidate particles spanning many orders of magnitude in mass. These candidates may give rise to distinct astrophysical phenomena, enabling indirect detection by identifying signals that deviate from expected astrophysical backgrounds. This study reviews the theoretical predictions and experimental progress in the indirect detection of dark matter across various mass scales, with a particular focus on the observational constraints and potential signals associated with axions/axion-like particles and weakly interacting massive particles, two candidates with strong theoretical motivation.