A system consisting of a proton and a neutron, cach bcing a spin 1/2 particle, has one nondegenerate bound state with total angular momentum J = 1. This bound state is mostly a S state (1 = 0) with small admixture of other orbital angular momentum states Assume that the strong interaction, which is solcly responsible for this bound state, is parity invariant. (a) Docs this state have a definite parity? Explain. (b) What other orbital angular momentum states could possibly contribute to this bound state? Explain.

A system consisting of a proton and a neutron, cach bcing a spin 1/2 particle, has one nondegenerate bound state with total angular momentum J = 1. This bound state is mostly a S state (1 = 0) with small admixture of other orbital angular momentum states Assume that the strong interaction, which is solcly responsible for this bound state, is parity invariant. (a) Docs this state have a definite parity? Explain. (b) What other orbital angular momentum states could possibly contribute to this bound state? Explain.