Wess-Zumino-Witten Interactions of Axions: Three-Flavor
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915939768860672 |
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| author | Bai, Yang Chen, Ting-Kuo Liu, Jia Ma, Xiaolin |
| author_facet | Bai, Yang Chen, Ting-Kuo Liu, Jia Ma, Xiaolin |
| contents | We present a complete Lagrangian describing axion interactions with pseudoscalar and (axial-)vector mesons within the three light-flavor quark framework. This formulation incorporates both the standard chiral Lagrangian and the full Wess-Zumino-Witten (WZW) term. By including instanton effects associated with the anomalous $U(1)_A$ symmetry, we demonstrate that physical observables remain invariant under arbitrary chiral phase rotations of the quark fields. This comprehensive Lagrangian provides a robust and consistent framework for exploring axion phenomenology through its interactions with mesons and gauge bosons. As a demonstration, we compute the decay widths of GeV-scale axions into various mesonic final states for several benchmark axion models. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_24822 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Wess-Zumino-Witten Interactions of Axions: Three-Flavor Bai, Yang Chen, Ting-Kuo Liu, Jia Ma, Xiaolin High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory We present a complete Lagrangian describing axion interactions with pseudoscalar and (axial-)vector mesons within the three light-flavor quark framework. This formulation incorporates both the standard chiral Lagrangian and the full Wess-Zumino-Witten (WZW) term. By including instanton effects associated with the anomalous $U(1)_A$ symmetry, we demonstrate that physical observables remain invariant under arbitrary chiral phase rotations of the quark fields. This comprehensive Lagrangian provides a robust and consistent framework for exploring axion phenomenology through its interactions with mesons and gauge bosons. As a demonstration, we compute the decay widths of GeV-scale axions into various mesonic final states for several benchmark axion models. |
| title | Wess-Zumino-Witten Interactions of Axions: Three-Flavor |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory |
| url | https://arxiv.org/abs/2505.24822 |