A detailed determination of the a priori mixing angles in non-leptonic decays of hyperons

Non-leptonic decays of hyperons can provide a detailed determination of the a priori mixing angles that appear in physical hadrons in the approach in which non-perturbative flavour and parity violations are present in tiny pieces of the hadron mass operator. The determination of such angles in these decays will provide a benchmark to test their necessary universality-like property in other types of decays. Our main result is that the magnitudes of the a priori mixing angles can be determined quite accurately.