Review on Axions

Abstract

This proceedings' contribution explores the rationale behind the axion as a resolution to the strong CP puzzle. It outlines various benchmark axion models and examines their implications, focusing on two key aspects: (i) the axion's interactions with the Standard Model particles, and (ii) its potential role as dark matter. Additionally, it provides an overview of the discovery prospects associated with ongoing and future axion experiments. These efforts span from laboratory-based endeavors aimed at directly producing and detecting axions to searches for solar axions, and finally, to the direct detection of axion dark matter.