View Single Post
 P: 79 1. The problem statement, all variables and given/known data Is the following reaction possible? If so, what is the type of interaction (EM, weak or strong)? $$p+\bar{p}\rightarrow\pi^+ + \pi^- + \pi^0$$ 2. Relevant equations Conservation laws and rules of thumb regarding types of interactions. 3. The attempt at a solution I don't think any conservation laws are broken so the process is possible. The question is how exactly. I don't have any idea how to put $\pi^0$ into Feynman diagrams... since its a superposition of two separate quark configurations. I drew the following: If $\pi^0$ was just $u\bar{u}$ then my question would be whether only changing quark configuration means that it is a strong interaction. And if so, how to draw a Feynman diagram showing what really changed. But $\pi^0$ is neither it nor $d\bar{d}$ - so what should I do? Thanks!