MESONIC CORRELATION-FUNCTIONS IN THE RANDOM INSTANTON VACUUM

First, a general model-independent discussion of mesonic correlation f unctions is given. We derive new inequalities, including one that is s tronger than Weingarten's inequality. Then a large set of mesonic corr elation functions is calculated in the random instanton liquid model, including diagonal and non-diagonal correlators of udBAR and usBAR typ e flavored currents, as well as a few of the most important unflavored ones. The results are compared with phenomenological expectations and lattice results. Not only the qualitative behaviour is reproduced in all channels, but in most cases this simple model was found to work wi th amazing accuracy.