Light axions with large hadronic couplings
Journal Article
·
· Journal of High Energy Physics (Online)
- Stanford Univ., CA (United States). Stanford Inst. for Theoretical Physics
We present models in which axions have large couplings to hadrons while remaining naturally light. By assigning U(1)PQ charges to Standard Model quarks such that U(1)PQ is not anomalous under QCD, the derivative couplings naturally arise while no potential is generated for the axion upon QCD confinement. We present simple models that implement this idea both for an axion-like particle and for the QCD axion. We show that both models lead to sizable flavor violations that could be probed by future experiments. Our construction shows that the axion coupling to hadrons can be essentially independent from its mass and thus motivates experimental searches in a wide range of axion parameter space.
- Research Organization:
- Stanford Univ., CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0012012
- OSTI ID:
- 1499140
- Journal Information:
- Journal of High Energy Physics (Online), Vol. 2018, Issue 5; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 14 works
Citation information provided by
Web of Science
Web of Science
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