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Physics potential of the International Axion Observatory (IAXO)
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Number of Authors: 912019 (English)In: Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, E-ISSN 1475-7516, no 6, article id 047Article in journal (Refereed) Published
Abstract [en]

We review the physics potential of a next generation search for solar axions: the International Axion Observatory (IAXO). Endowed with a sensitivity to discover axion-like particles (ALPs) with a coupling to photons as small as g(a gamma) similar to 10(-12) GeV-1, or to electrons g(ae) similar to 10(-13), IAXO has the potential to find the QCD axion in the 1 meV similar to 1 eV mass range where it solves the strong CP problem, can account for the cold dark matter of the Universe and be responsible for the anomalous cooling observed in a number of stellar systems. At the same time, IAXO will have enough sensitivity to detect lower mass axions invoked to explain: 1) the origin of the anomalous transparency of the Universe to gamma-rays, 2) the observed soft X-ray excess from galaxy clusters or 3) some inflationary models. In addition, we review string theory axions with parameters accessible by IAXO and discuss their potential role in cosmology as Dark Matter and Dark Radiation as well as their connections to the above mentioned conundrums.

Place, publisher, year, edition, pages
2019. no 6, article id 047
Keywords [en]
axions, dark matter detectors, dark matter experiments
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-170882DOI: 10.1088/1475-7516/2019/06/047ISI: 000472756600002OAI: oai:DiVA.org:su-170882DiVA, id: diva2:1338521
Available from: 2019-07-23 Created: 2019-07-23 Last updated: 2019-07-23Bibliographically approved

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Marsh, M. C. David
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Department of PhysicsThe Oskar Klein Centre for Cosmo Particle Physics (OKC)
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