The International Axion Observatory

Welcome to the home page of the IAXO project!

The International Axion Observatory (IAXO) is a proposed fourth-generation axion helioscope. It aims at a sensitivity much improved with respect to past and current axion searches, with real discovery potential.

The conceptual design of the experiment has been finished and a Letter of Intent  submitted to CERN. Recently, the SPSC has recognized the physics case of IAXO and has recommended proceeding with a Technical Design Report.

In these pages, you will find information about the physics of IAXO, the different systems of the experiment, magnet, optics, and detectors, publications and presentations in conferences, and the latest news of the project.