The Lagrangian equation...

I request to initiate a thread on what I only know as the Lagrangian equation. The original published scientific paper derivation proof is unknown to me. [math]\;[/math] Lagrangian equation: [math]\mathcal{L} = \underbrace{\mathbb{R}}_{GR} - \overbrace{\underbrace{\frac{1}{4} F_{\mu \nu} F^{\mu \nu}}_{Yang-Mills}}^{Maxwell} + \underbrace{i \overline{\psi} \gamma^\mu D_\mu \psi}_{Dirac} + \underbrace{|D_\mu h|^2-V\left(|h| \right)}_{Higgs} + \underbrace{h \overline{\psi} \psi}_{Yukawa} = 0[/m
Electroweak Langrangian L=−14WαμνWμνα−14BμνBμν+Ψ¯¯¯¯iγμDμΨ W1,2,3μ and Bμ Covariant Derivative Dμ=∂μ+igWμτ2−ig´2Bμ mass eigenstates observed in experiments are linear combinations of the electroweak eigenstates. Hence  W− and  W+   W±μ=12−−√(W1μW2μ) γ and Z are\ Aμ=BmucosθW+W3μsinθW Zμ=BmusinθW+W3μcosθW Cabibbo-Kobayashi-Maskawa matrix ⎛⎝⎜⎜d´s´b´⎞⎠⎟⎟⎛⎝⎜VudVcdVtdVusVcsVtsVubVcbVtb⎞⎠⎟⎛⎝⎜dsb⎞⎠⎟   symmtric massles