  A priori mixings of eigenstates in physical states are quantum mechanical
effects well known in several realms of physics. The possibility that such
effects are also present in particle physics, in the form of mixings that break
flavor and parity symmetries, is studied. Applications to non-leptonic and weak
radiative decays of hyperons are discussed. The results are very encouraging
but should be improved by eventually including the W and Z contributions,
assumed small (non-enhanced) in this work.
