The summation0 can decay into pi summation pi0 summation0

The summation*^0 can decay into (pi^- + summation^+), (pi^0 + summation^0) or (summation^+ + summation^-). The summation*^0 has spin and parity quantum numbers J^P = 3/2^+. Suppose that your experiment has observed 10,000 such decays. Use isospin conservation to predict what fractions of each type of decay would you expect to find.

Solution

as in all these decays isospin is conserved, so it means that all these are possible to find out equally.