Leptonic ALP portal to the dark sector
Abstract: We discuss the leptonic axionlike particle (ALP) portal as a simple scenario that connects observed discrepancies in anomalous magnetic moments to the dark matter relic abundance. In this framework an axionlike particle in the multi-MeV range couples to SM leptons and a dark matter (DM) fermion, with mass above the ALP mass but below 1 GeV. The ALP contributes to ( −2) and ( −2) dominantly through two-loop Barr-Zee diagrams, while the DM abundance is generated by -wave annihilation to ALP pairs. Constraints from beam-dump experiments, colliders, and cosmic microwave background probes are very stringent, and restrict the viable parameter space to a rather narrow region that will be tested in the near future
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Notes
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Physical review. D. - 109, 5 (2024) , 055029, ISSN: 2470-0029
- Event
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Veröffentlichung
- (where)
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Freiburg
- (who)
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Universität
- (when)
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2024
- Creator
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Armando, Giovanni
Panci, Paolo
Weiss, Joachim
Ziegler, Robert
- DOI
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10.1103/physrevd.109.055029
- URN
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urn:nbn:de:bsz:25-freidok-2532910
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:44 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Armando, Giovanni
- Panci, Paolo
- Weiss, Joachim
- Ziegler, Robert
- Universität
Time of origin
- 2024
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