The following decay is possible according to the PDG and according to my notes it is a strong decay:
$$\omega(1420) \to \rho^0 + \pi^0$$
The JPC values are:
So, all three particles have, for themselves, a parity of -1.
The combined parity on the right side should then be (-1)*(-1)=1. But the left side has a parity of -1. This violates parity, but parity should not be violated in a strong decay.
1) What's going on and where is the error in my argument?
2) How can I calculate the orbital angular momentum the two decay products have in relation to each other?