Gluon Condensate and Beyond

Abstract

We review briefly and in retrospect the development which brought about the QCD sum rules based on introduction of the gluon condensate (M.A. Shifman, A.I. Vainshtein, and V.I. Zakharov (1978)).

Comments: 15 pages, 5 figures, uses sprocl.sty (included). The 1999 Sakurai Prize Lecture