Bounds on Axions-Like Particles Shining in the Ultra-Violet
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866915312221290496 |
|---|---|
| author | Todarello, Elisa Regis, Marco |
| author_facet | Todarello, Elisa Regis, Marco |
| contents | Axion-like particles (ALPs) can decay into two photons with a rest-frame frequency given by half of the ALP mass. This implies that ultra-violet searches can be used to investigate ALPs in the multi-eV mass range. We use archival data from the Hubble Space Telescope between 110 and 170 nm to constrain ALPs with mass between 14.4-22.2 eV. We consider observations of a set of dwarf spheroidal galaxies and galaxy clusters and assume the ALP density in these objects to follow their dark matter density. The derived limit on the ALP-photon coupling $g_{aγ}$ excludes values above $10^{-12}~{\rm GeV}^{-1}$ over the whole mass range and surpasses previous limits by over one order of magnitude. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_02543 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Bounds on Axions-Like Particles Shining in the Ultra-Violet Todarello, Elisa Regis, Marco High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics Axion-like particles (ALPs) can decay into two photons with a rest-frame frequency given by half of the ALP mass. This implies that ultra-violet searches can be used to investigate ALPs in the multi-eV mass range. We use archival data from the Hubble Space Telescope between 110 and 170 nm to constrain ALPs with mass between 14.4-22.2 eV. We consider observations of a set of dwarf spheroidal galaxies and galaxy clusters and assume the ALP density in these objects to follow their dark matter density. The derived limit on the ALP-photon coupling $g_{aγ}$ excludes values above $10^{-12}~{\rm GeV}^{-1}$ over the whole mass range and surpasses previous limits by over one order of magnitude. |
| title | Bounds on Axions-Like Particles Shining in the Ultra-Violet |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2412.02543 |