My question would be (as I couldn't find a website summarising it) to have a comprehensive list of how to check whether a particle interaction is allowed and if so, what interaction it is (or it would be expected to be)
To check whether a particle interaction is allowed:
- J,Q and B have to be conserved (as well as the energy)
Is there something else?
To check which interaction it (most likely) is I don't have many Ideas..
- Weak Interaction: Isospin not conserved, C or/and P not conserved, individual quark numbers not conserved
but what are the indicators for the strong/EM interaction? Or how do I rule them out?
e.g. how would I check whether $$\rho^0\longrightarrow e^+e^-$$ would be allowed as an EM interaction?