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Quadratic Coupling of the Axion to Photons
We show that the QCD axion couples to the electromagnetic kinetic term at one loop. The result is that if axions make up dark matter, they induce temporal variation of the fine structure constant $\alpha$, which is severely constrained. We recast these constraints on the QCD axion parameter space. W...
| Autores principales: | , , , |
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| Lenguaje: | eng |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/2865698 |
| _version_ | 1780978059130699776 |
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| author | Beadle, Carl Ellis, Sebastian A.R. Quevillon, Jérémie Hoa Vuong, Pham Ngoc |
| author_facet | Beadle, Carl Ellis, Sebastian A.R. Quevillon, Jérémie Hoa Vuong, Pham Ngoc |
| author_sort | Beadle, Carl |
| collection | CERN |
| description | We show that the QCD axion couples to the electromagnetic kinetic term at one loop. The result is that if axions make up dark matter, they induce temporal variation of the fine structure constant $\alpha$, which is severely constrained. We recast these constraints on the QCD axion parameter space. We also discuss how to generalise our finding to axion-like particles, and the resulting constraints. |
| id | cern-2865698 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2023 |
| record_format | invenio |
| spelling | cern-28656982023-10-03T15:51:38Zhttp://cds.cern.ch/record/2865698engBeadle, CarlEllis, Sebastian A.R.Quevillon, JérémieHoa Vuong, Pham NgocQuadratic Coupling of the Axion to Photonshep-phParticle Physics - PhenomenologyWe show that the QCD axion couples to the electromagnetic kinetic term at one loop. The result is that if axions make up dark matter, they induce temporal variation of the fine structure constant $\alpha$, which is severely constrained. We recast these constraints on the QCD axion parameter space. We also discuss how to generalise our finding to axion-like particles, and the resulting constraints.arXiv:2307.10362CERN-TH-2023-136DESY-23-097oai:cds.cern.ch:28656982023-07-19 |
| spellingShingle | hep-ph Particle Physics - Phenomenology Beadle, Carl Ellis, Sebastian A.R. Quevillon, Jérémie Hoa Vuong, Pham Ngoc Quadratic Coupling of the Axion to Photons |
| title | Quadratic Coupling of the Axion to Photons |
| title_full | Quadratic Coupling of the Axion to Photons |
| title_fullStr | Quadratic Coupling of the Axion to Photons |
| title_full_unstemmed | Quadratic Coupling of the Axion to Photons |
| title_short | Quadratic Coupling of the Axion to Photons |
| title_sort | quadratic coupling of the axion to photons |
| topic | hep-ph Particle Physics - Phenomenology |
| url | http://cds.cern.ch/record/2865698 |
| work_keys_str_mv | AT beadlecarl quadraticcouplingoftheaxiontophotons AT ellissebastianar quadraticcouplingoftheaxiontophotons AT quevillonjeremie quadraticcouplingoftheaxiontophotons AT hoavuongphamngoc quadraticcouplingoftheaxiontophotons |