Absence of CP Violation in the Strong Interaction: Vacuum thwarts Axion
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866916600845697024 |
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| author | Schierholz, Gerrit |
| author_facet | Schierholz, Gerrit |
| contents | QCD admits a contribution to the action, the $θ$ term, which potentially gives rise to nontrivial phases and violates CP. This is essentially a question of how the vacuum reacts to the $θ$ term. In this talk I will address the problem using new developments on the lattice. The overall solution is contrasted with the axion `solution'. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_04092 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Absence of CP Violation in the Strong Interaction: Vacuum thwarts Axion Schierholz, Gerrit High Energy Physics - Lattice High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory QCD admits a contribution to the action, the $θ$ term, which potentially gives rise to nontrivial phases and violates CP. This is essentially a question of how the vacuum reacts to the $θ$ term. In this talk I will address the problem using new developments on the lattice. The overall solution is contrasted with the axion `solution'. |
| title | Absence of CP Violation in the Strong Interaction: Vacuum thwarts Axion |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory |
| url | https://arxiv.org/abs/2502.04092 |