Autor: |
Paolo Panci, Diego Redigolo, Thomas Schwetz, Robert Ziegler |
Jazyk: |
angličtina |
Rok vydání: |
2023 |
Předmět: |
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Zdroj: |
Physics Letters B, Vol 841, Iss , Pp 137919- (2023) |
Druh dokumentu: |
article |
ISSN: |
0370-2693 |
DOI: |
10.1016/j.physletb.2023.137919 |
Popis: |
We propose simple scenarios where lepton flavor-violating couplings generate the observed dark matter abundance through freeze-in of an axion-like particle with mass in the few keV range. Compared to flavor-diagonal freeze-in, this mechanism enhances dark matter stability, softens stellar cooling constraints and improves the experimental sensitivity of accelerator-based searches. These scenarios can be tested by future X-ray telescopes, and in some cases will be almost entirely probed by new searches for lepton flavor violation at high-intensity experiments such as Mu3e and MEG II. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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