Ahmes
Jun20-07, 09:22 AM
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:
http://img220.imageshack.us/img220/6554/pixo3.png
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!
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:
http://img220.imageshack.us/img220/6554/pixo3.png
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!