Parametrization of the neutrino mass matrix in terms of well-known measured quantities is an attractive way to obtain a phenomenologically viable form. We propose a model of neutrino mass matrix based on type-II seesaw mechanism adhering the concept of badly broken symmetry. Two of the mixing angles are coming out as θ ₂₃ ∼ 46.08, θ ₁₃ ∼ 8.69. However, to accommodate the other oscillation parameters, we further add an extra doublet and the neutrino masses are generated through the Zee mechanism at the one loop level, and the modified model can admit all the extant data for a suitable choice of model parameters.

中文翻译：

---

具有破坏对称性 ansatz 的辐射型 II 型跷跷板模型

根据众所周知的测量量对中微子质量矩阵进行参数化是获得现象学可行形式的一种有吸引力的方式。我们提出了一种基于 II 型跷跷板机制的中微子质量矩阵模型，该模型遵循严重破坏对称性的概念。其中两个混合角为θ ₂₃ ∼ 46.08、θ ₁₃ ∼ 8.69。然而，为了适应其他振荡参数，我们进一步添加了一个额外的双峰，中微子质量是通过单环水平的 Zee 机制产生的，并且修改后的模型可以接纳所有现有数据，以便选择合适的模型参数。