Note on the method of confirming the predicted Ψ-parity

According to the unitary symmetry prediction, the Ψ-parity is considered to be even, but its value has not yet been measured. In this article, we propose the experiments from which definite information on the Ψ-parity is obtainable by measuring the spin-spin correlation of the final products in the reaction Ψ-p→Λ0Λ0. The spin-spin correlation function is also given in the general and complete form for the two body baryon reaction. (auth.)