Light axions with large hadronic couplings
Abstract
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.
- Authors:
-
- Stanford Univ., CA (United States). Stanford Inst. for Theoretical Physics
- Publication Date:
- Research Org.:
- Stanford Univ., CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1499140
- Grant/Contract Number:
- SC0012012
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 5; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Marques-Tavares, Gustavo, and Teo, Mae. Light axions with large hadronic couplings. United States: N. p., 2018.
Web. doi:10.1007/jhep05(2018)180.
Marques-Tavares, Gustavo, & Teo, Mae. Light axions with large hadronic couplings. United States. https://doi.org/10.1007/jhep05(2018)180
Marques-Tavares, Gustavo, and Teo, Mae. Tue .
"Light axions with large hadronic couplings". United States. https://doi.org/10.1007/jhep05(2018)180. https://www.osti.gov/servlets/purl/1499140.
@article{osti_1499140,
title = {Light axions with large hadronic couplings},
author = {Marques-Tavares, Gustavo and Teo, Mae},
abstractNote = {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.},
doi = {10.1007/jhep05(2018)180},
journal = {Journal of High Energy Physics (Online)},
number = 5,
volume = 2018,
place = {United States},
year = {2018},
month = {5}
}
Web of Science
Figures / Tables:

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Figures / Tables found in this record: