Weinberg-Salam 模型是史蒂文·温伯格和Abdus Salam提出弱电统一的规范场论模型。
其拉格朗日量是:
L = − ( 1 / 4 ) A μ ν A μ ν − ( 1 / 4 ) B μ ν B μ ν {\displaystyle {\mathcal {L}}=-(1/4)A_{\mu \nu }A^{\mu \nu }-(1/4)B_{\mu \nu }B^{\mu \nu }} + {\displaystyle +\left} + ( ∂ μ ϕ − i g ′ 2 B μ ϕ − i g 2 τ i A μ i ϕ ) † ( ∂ μ ϕ − i g ′ 2 B μ ϕ − i g 2 τ i A i μ ϕ ) − V ( ϕ † ϕ ) {\displaystyle +\left(\partial _{\mu }\phi -i{\frac {g'}{2}}B_{\mu }\phi -{\frac {ig}{2}}\tau ^{i}A_{\mu i}\phi \right)^{\dagger }\left(\partial ^{\mu }\phi -i{\frac {g'}{2}}B^{\mu }\phi -{\frac {ig}{2}}\tau ^{i}A_{i}^{\mu }\phi \right)-V(\phi ^{\dagger }\phi )}
其中