1

${\pi }^{\pm }\to e^{\pm }+\upsilon$

$e_e\cdot e_e=1$

$e_{{\pi }^{\pm }}=1$

2

$\mu \to e+{\upsilon }_{\mu }+{\upsilon }_e$

$e_{\mu }=e_{\mu }\cdot 1=e_{\mu }\cdot e_e\cdot e_e$

μ中微子与e中微子不同时

3

$K_L\to K_S+A$

$e_{\mu }=e_{\mu }\cdot 1=e_{\mu }\cdot e_e\cdot e_e=A\cdot e_e$

4

$n+{\upsilon }_e\to p+\{\begin{array}{l}e\\ \mu +A\\ \tau +A\end{array}$

$e_e=e_e\cdot 1=\{\begin{array}{l}{e}_e\cdot e_e\cdot e_e\\ e_{\mu }\cdot e_e\cdot e_{\mu }\\ e_{\tau }\cdot e_e\cdot e_{\tau }\end{array}=\{\begin{array}{l}{e}_e\\ e_A\cdot e_{\mu }\\ e_A\cdot e_{\tau }\end{array}$

5

${\pi }^0\to e^{-}+e^{+}+e^{-}+e^{+}$

$e_e\cdot e_e\cdot e_e\cdot e_e=1$

$e_{{\pi }^0}=1$

6

$e^{+}+e^{-}\to 2\gamma$

$\begin{array}{c}{\alpha }_x\cdot {\alpha }_x={\alpha }_x\cdot 1\cdot {\alpha }_x\\ ={\alpha }_x\cdot {\alpha }_y\cdot {\alpha }_y\cdot {\alpha }_x\\ ={\alpha }_x{\alpha }_y\cdot {\alpha }_y{\alpha }_x\end{array}$

$e_{\gamma }={\alpha }_x{\alpha }_y,{\alpha }_y{\alpha }_z$