查看“︁Weinberg-Salam 模型”︁的源代码

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'''Weinberg-Salam 模型'''是[[史蒂文·温伯格]]和[[Abdus Salam]]提出[[電弱交互作用|弱電統一]]的[[规范场论|規範場論]]模型。

其[[拉格朗日量]]是<ref name="ItzyksonZuber2012">{{cite book|author1=Claude Itzykson|author2=Jean-Bernard Zuber|title=Quantum Field Theory|url=http://books.google.com/books?id=CxYCMNrUnTEC|date=20 September 2012|publisher=Courier Corporation|isbn=978-0-486-13469-7|pages=621}}</ref>：

<math>\mathcal{L} = - (1/4) A_{\mu\nu} A^{\mu\nu} - (1/4) B_{\mu\nu}B^{\mu\nu}  </math>
<math>+ \left [ \bar{R}_e (i \partial\!\!\!/ - g' b\!\!\!/ ) R_e + \bar{L}_e (i\partial\!\!\!/ - \frac{g'}{2} B\!\!\!/ + G \frac{\tau_i}{2} A\!\!\!/_i)L_e - G_e(\bar{L}_e R_e \phi + \phi ^{\dagger}\bar{R}_e L_e) + ( e \leftrightarrow \mu ) \right ]   </math>
<math>+ \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^{\mu}_i \phi \right ) - V(\phi^{\dagger}\phi)</math>

其中
* <math>A_{\mu\nu} := \partial_{\mu}A_{\nu} - \partial_{\nu}A_{\mu} + g A_{\mu} \times A_{\nu}</math>是SU(2) [[規範場]] <math>A_{\mu}</math>的力
* <math>B_{\mu\nu} := \partial_{\mu}B_{\nu} - \partial_{\nu}B_{\mu} </math>是U(1)場（[[電磁場]]）<math>B_{\mu}</math>的力
* g 是荷
* <math>\partial\!\!\!/</math>是[[狄拉克算子]]，用[[費曼斜線標記]]表示
* g'/2 是U(1)[[耦合常數]]
* <math>L_e = \begin{pmatrix}
  \nu_e \\
  e_L 
\end{pmatrix}</math> 是電子中微子和[[电子|電子]]的左[[螺旋度]]

* <math>L_{\mu} :=  \begin{pmatrix}
 \nu_{\mu} \\
 \nu_L
\end{pmatrix}</math> 是 muon中微子和 [[Μ子|M子]]&nbsp;的左[[螺旋度]]

* <math>\phi := \begin{pmatrix}
 \phi^{\dagger} \\
 \phi_0 \end{pmatrix}</math> 是複純量的兩元組

* <math>V := \mu^2\phi^{\dagger}\phi + \lambda (\phi^{\dagger}\phi)^2 </math>是勢

* <math>\tau_i</math> 是[[泡利矩陣]]

== 参考来源 ==
{{reflist}}

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[[Category:力]]
[[Category:粒子物理学]]
[[Category:量子场论]]