2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/44670QCD-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.preprint NSF-ITP-92-145,TPI-MINN-92/58, 5 pages. latex file. a conference talkHigh Energy Physics - Phenomenologytext