Axion-like Particle Searches with IACTs

The growing interest in axion-like particles (ALPs) stems from the fact that they provide successful theoretical explanations of physics phenomena, anomaly CP-symmetry conservation strong interactions to observation an unexpectedly large TeV photon flux astrophysical sources, at distances where absorption by intergalactic medium should make signal very dim. In this latter condition, which is focus review, a possible explanation photons convert ALPs presence and/or extended magnetic fields, such as those core galaxy clusters or around compact objects, even space. This mixing affects observed γ-ray spectrum distant either recovery production irregularities spectrum, called ‘wiggles’, according specific microscopic realization ALP and ambient field source, Milky Way, may be converted back γ rays. are also proposed candidate for Dark Matter. Imaging Atmospheric Cherenkov telescopes (IACTs) have potential detect imprint several classes sources. contribution, we present case review past decade searches with class instruments.