Axion Searches in the Past, at Present, and in the Near Future

TL;DR

This paper reviews the development and current state of axion search experiments over the past 30 years, highlighting techniques based on the Primakoff effect and discussing future prospects.

Contribution

It provides a comprehensive overview of experimental approaches for axion detection and offers an outlook on upcoming experiments in the field.

Findings

Various experimental techniques have been developed over 30 years.

Most experiments utilize the Primakoff effect for axion-photon conversion.

Future experiments are planned to enhance detection sensitivity.

Abstract

Theoretical axion models state that axions are very weakly interacting particles. In order to experimentally detect them, the use of colorful and inspired techniques becomes mandatory. There is a wide variety of experimental approaches that were developed during the last 30 years, most of them make use of the Primakoff effect, by which axions convert into photons in the presence of an electromagnetic field. We review the experimental techniques used to search for axions and will give an outlook on experiments planned for the near future.