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Ahmes
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Homework Statement
Is the following reaction possible? If so, what is the type of interaction (EM, weak or strong)?
[tex]p+\bar{p}\rightarrow\pi^+ + \pi^- + \pi^0[/tex]
Homework Equations
Conservation laws and rules of thumb regarding types of interactions.
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 [itex]\pi^0[/itex] into Feynman diagrams... since its a superposition of two separate quark configurations. I drew the following:
http://img220.imageshack.us/img220/6554/pixo3.png
If [itex]\pi^0[/itex] was just [itex]u\bar{u}[/itex] 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 [itex]\pi^0[/itex] is neither it nor [itex]d\bar{d}[/itex] - so what should I do?
Thanks!
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