Flavor Probes of Axion Dark Matter

Standard Model extensions with light axions are well-motivated by the observed Dark Matter abundance and the Peccei-Quinn solution to the Strong CP Problem. In general such axions can have large flavor-violating couplings to SM fermions, which naturally arise in scenarios where the Peccei-Quinn symm...

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Bibliographic Details
Published inarXiv.org
Main Author Ziegler, Robert
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 23.03.2023
Subjects
Astronomical models
Cosmology
Couplings
Dark matter
Fermions
Flavor (particle physics)
Particle decay
Standard model (particle physics)
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Summary:Standard Model extensions with light axions are well-motivated by the observed Dark Matter abundance and the Peccei-Quinn solution to the Strong CP Problem. In general such axions can have large flavor-violating couplings to SM fermions, which naturally arise in scenarios where the Peccei-Quinn symmetry also explains the hierarchical pattern of fermion masses and mixings. I will discuss how these couplings allow for efficient axion production from the decays of SM particles, giving the opportunity to probe flavored axion Dark Matter with precision flavor experiments, astrophysics and cosmology.
ISSN:2331-8422