Structure of leptonic Yukawa couplings in the Zee model
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arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866911135593136128 |
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| author | Chen, Chuan-Hung |
| author_facet | Chen, Chuan-Hung |
| contents | The radiative neutrino mass matrix $m^ν$ in the Zee model depends on leptonic Yukawa couplings $F$ to a singlet scalar and $Y^\ell$ to a new Higgs doublet. Leveraging the skew-symmetric structure of $F$, we derive a unique identity linking $F$ and $m^ν$ that is explicitly independent of $Y^\ell$. This relation implies that five entries of $Y^\ell$ can, in principle, be determined directly from $m^ν$ and $F$, while the remaining four can be selected based on phenomenological assumptions. As an illustration, we apply this framework to the two-zero texture $B2$, highlighting its enhancement of the muon $g-2$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_18757 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Structure of leptonic Yukawa couplings in the Zee model Chen, Chuan-Hung High Energy Physics - Phenomenology High Energy Physics - Experiment The radiative neutrino mass matrix $m^ν$ in the Zee model depends on leptonic Yukawa couplings $F$ to a singlet scalar and $Y^\ell$ to a new Higgs doublet. Leveraging the skew-symmetric structure of $F$, we derive a unique identity linking $F$ and $m^ν$ that is explicitly independent of $Y^\ell$. This relation implies that five entries of $Y^\ell$ can, in principle, be determined directly from $m^ν$ and $F$, while the remaining four can be selected based on phenomenological assumptions. As an illustration, we apply this framework to the two-zero texture $B2$, highlighting its enhancement of the muon $g-2$. |
| title | Structure of leptonic Yukawa couplings in the Zee model |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2508.18757 |