Wess-Zumino-Witten Interactions of Axions
We present a consistent derivation of the complete Wess-Zumino-Witten interactions of axions, including the counter-term necessary to guarantee the gauge invariance of the standard model. By treating the derivative of the axion field as a background gauge field and incorporating auxiliary chiral rotation phases, we ensure consistency in the axion-interaction Lagrangian. This approach allows us to derive basis-independent physical interactions of axions with gauge bosons and vector mesons. These interactions have broad applications in axion phenomenology for both light and heavy axion particles.
Authors
- Ting-Kuo Chen (ORCID: https://orcid.org/0000-0002-5267-6729)
- Y. Bai (ORCID: https://orcid.org/0000-0002-2957-7319)
- Jia Liu (ORCID: https://orcid.org/0000-0001-7386-0253)
- Xiaolin Ma (ORCID: https://orcid.org/0009-0007-1994-9493)
Institutions
- University of Wisconsin–Madison (US)
- Peking University (CN)
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology (CN)
- State Key Laboratory of Nuclear Physics and Technology
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-02-26
- DOI
- https://doi.org/10.1103/physrevlett.134.081803
- Citations
- 5
- Primary Topic
- Dark Matter and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 9.35
Funders
- U.S. Department of Energy
- National Natural Science Foundation of China