A new Wolfenstein-like expansion of lepton flavor mixing towards understanding its fine structure
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916226151743488 |
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| author | Xing, Zhi-zhong |
| author_facet | Xing, Zhi-zhong |
| contents | Taking the tri-bimaximal flavor mixing pattern as a particular basis, we propose a new way to expand the $3\times 3$ unitary Pontecorvo-Maki-Nakagawa-Sakata (PMNS) lepton flavor mixing matrix $U$ in powers of the magnitude of its smallest element $ξ\equiv \left|U^{}_{e 3}\right| \simeq 0.149$. Such a Wolfenstein-like parametrization of $U$ allows us to easily describe the salient features and fine structures of flavor mixing and CP violation, both in vacuum and in matter. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_00559 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A new Wolfenstein-like expansion of lepton flavor mixing towards understanding its fine structure Xing, Zhi-zhong High Energy Physics - Phenomenology High Energy Physics - Experiment Taking the tri-bimaximal flavor mixing pattern as a particular basis, we propose a new way to expand the $3\times 3$ unitary Pontecorvo-Maki-Nakagawa-Sakata (PMNS) lepton flavor mixing matrix $U$ in powers of the magnitude of its smallest element $ξ\equiv \left|U^{}_{e 3}\right| \simeq 0.149$. Such a Wolfenstein-like parametrization of $U$ allows us to easily describe the salient features and fine structures of flavor mixing and CP violation, both in vacuum and in matter. |
| title | A new Wolfenstein-like expansion of lepton flavor mixing towards understanding its fine structure |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2403.00559 |