Nonperturbative QCD efects in weak hadronic decays

Abstract

QCD-based analysis of nonfactorizable parts of weak nonleptonic amplitudes is reported. Nonperturbative effects due to soft gluon exchange play a key role leading to the emergence of a dynamical rule of discarding $1/N_c$ corrections.

Comments: preprint NSF-ITP-92-145,TPI-MINN-92/58, 5 pages. latex file. a conference talk