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Weak force/interations ; exchange particles

Hi, I have a question. In weak interactions, how can you tell if the exchange particle is a W+ or W- (or Z0)? I've been asked to finish labelling a Feynman diagram and I'm not sure what the exchange particle would be.

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Original post by sabsliv
Hi, I have a question. In weak interactions, how can you tell if the exchange particle is a W+ or W- (or Z0)? I've been asked to finish labelling a Feynman diagram and I'm not sure what the exchange particle would be.

Hello sabsliv!
Without your attempt, we cannot begin to help you.
However, a boson (Z^o) is certainly not easy to approach.

Bye,
Sandro

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