Why do we need instantons in strangeness hadron physics?

Abstract

Roles of instantons in strangeness hadron physics are discussed. After introducing general features of instantons, hadron spectroscopy under the influence of instanton-quark effective interactions is discussed. Emphases are on the H dibaryon, spin-orbit splittings of P-wave baryons and baryon-baryon interactions and spectrum of the pentaquarks.

Comments: Talk given at the International Workshop on Strangeness Nuclear Physics (SNP2004) (July 29 -31, 2004, Osaka, Japan)