Alternative to Axions
Fuente:
arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866914238775164928 |
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| author | Kaloper, Nemanja |
| author_facet | Kaloper, Nemanja |
| contents | The $U(1)$ CP-violating phase which arises below chiral symmetry breaking in a non-Abelian gauge theory is ``secretly" the magnetic dual of the flux of a $U(1)$ $4$-form gauge field. Thus the discharge of this $4$-form flux by Schwinger production of charged membranes reduces the total CP-violating phase toward zero. This can safely restore CP symmetry to within the observational limits, $θ_{\cancel{\tt CP}} \la 10^{-10}$, while also satisfying all limits from cosmology, when the charge and the tension of the gauge field sources are in the $\la keV$ range. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_21078 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Alternative to Axions Kaloper, Nemanja High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Theory The $U(1)$ CP-violating phase which arises below chiral symmetry breaking in a non-Abelian gauge theory is ``secretly" the magnetic dual of the flux of a $U(1)$ $4$-form gauge field. Thus the discharge of this $4$-form flux by Schwinger production of charged membranes reduces the total CP-violating phase toward zero. This can safely restore CP symmetry to within the observational limits, $θ_{\cancel{\tt CP}} \la 10^{-10}$, while also satisfying all limits from cosmology, when the charge and the tension of the gauge field sources are in the $\la keV$ range. |
| title | Alternative to Axions |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2504.21078 |