The Gatto Sartori Tonin (GST) relation which connects the Cabibbo angle and the quark mass ratio: ${\theta }_C=\sqrt{m_d/m_s}$, is instituted as ${\theta }_{13}=\sqrt{m_1/m_3}$ to a Bi-large motivated lepton mixing framework that relies on the unification of mixing parameters: ${\theta }_{13}={\theta }_C$ and ${\theta }_{12}={\theta }_{23}$. This modification, in addition to ruling out the possibility of vanishing ${\theta }_{13}$, advocates for a nonzero lowest neutrino mass and underlines the normal ordering of the neutrino masses. The framework is further enhanced by the inclusion of a charged lepton diagonalizing matrix $U_{lL}$ with $({\theta }_{12}^l\sim {\theta }_C)$. The model is framed at the Grand unification theory (GUT) scale. To understand the universality of the GST relation and the Cabibbo angle, we test the observational mixing parameters at the Z boson mass scale.

Gatto Sartori Tonin（GST）关系，将Cabibbo角和夸克质量比联系起来： ${\theta }_C=\sqrt{{米}_d/{米}_s}$，成立为 ${\theta }_{13}=\sqrt{{米}_{\mathrm{1个}}/{米}_3}$ 双大型动机轻子混合框架，该框架依赖于混合参数的统一： ${\theta }_{13}={\theta }_C$ 和 ${\theta }_{12}={\theta }_{23}$。除了排除消失的可能性外，此修改${\theta }_{13}$，倡导非零最低中微子质量，并强调了中微子质量的正常排序。通过包含带电的轻子对角化矩阵进一步增强了框架${ü}_{升\mathrm{大号}}$ 与 $（{\theta }_{12}^{升}〜{\theta }_C）$。该模型以大统一理论（GUT）规模构建。为了了解GST关系和Cabibbo角的普遍性，我们在Z玻色子质量标度上测试了观测混合参数。