Solving the strong CP problem in string-inspired theories with modular invariance
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915434129784832 |
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| author | Feruglio, Ferruccio Marrone, Antonio Strumia, Alessandro Titov, Arsenii |
| author_facet | Feruglio, Ferruccio Marrone, Antonio Strumia, Alessandro Titov, Arsenii |
| contents | We show that solutions to the strong CP problem based on modular invariance can be extended to incorporate features that appear in string compactifications: quarks with mostly positive modular weights and non-trivial gauge kinetic functions. This requires assuming that singularities and zeroes only appear at special points, such as decompactification limits. We discuss the impact of these assumptions on string gauge unification. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_20395 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Solving the strong CP problem in string-inspired theories with modular invariance Feruglio, Ferruccio Marrone, Antonio Strumia, Alessandro Titov, Arsenii High Energy Physics - Phenomenology High Energy Physics - Theory We show that solutions to the strong CP problem based on modular invariance can be extended to incorporate features that appear in string compactifications: quarks with mostly positive modular weights and non-trivial gauge kinetic functions. This requires assuming that singularities and zeroes only appear at special points, such as decompactification limits. We discuss the impact of these assumptions on string gauge unification. |
| title | Solving the strong CP problem in string-inspired theories with modular invariance |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2505.20395 |