Searching for axion-like particles with SPHEREx
Abstract We study prospects to detect axion-like particles (ALPs) with the upcoming near-infrared telescope SPHEREx. The signal under investigation is the ALP decay into two photons. Assuming dark matter (DM) to be in the form of ALPs, we analyze the signal from the DM halos of dwarf spheroidal galaxies, the Large Magellanic Cloud and the Milky Way. We find that SPHEREx can significantly improve current limits on the axion-photon coupling in the 0.5–3 eV ALP mass range.
Authors
- Marco Regis (ORCID: https://orcid.org/0000-0003-0399-0284)
- Marco Taoso (ORCID: https://orcid.org/0000-0001-7181-2071)
- Jorge Terol-Calvo
Institutions
- Istituto Nazionale di Fisica Nucleare, Sezione di Torino (IT)
- University of Turin (IT)
Publication Details
- Journal
- Journal of Cosmology and Astroparticle Physics
- Published
- 2025-05-01
- DOI
- https://doi.org/10.1088/1475-7516/2025/05/008
- Citations
- 2
- Primary Topic
- Dark Matter and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 3.74