Isobar states decay probabilities

[kelly0303]

Hello! Given an excited state of a nucleon, such as the $\Delta$ baryon (and here I mean all its 4 version $\Delta^{++}$, $\Delta^{+}$, $\Delta^{0}$, $\Delta^{-}$), the decay channel is (in this case) to a pion and a nucleon. I was wondering, is the decay probability the same for all 4 versions? I assume that they all decay through the strong force, and I don't see any quantum number that might favor one over the other, but I am not totally sure. Thank you!

 

[Orodruin]

What does isospin symmetry tell you about the Clebsch-Gordan coefficients?