2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39882The $ΔI=1/2$ rule and direct CP violation $ε'/ε$ in kaon decays are studied within the framework of the effective Hamiltonian approach in conjunction with generalized factorization for hadronic matrix elements.3 pages, 2 figures, talk presented at ICHEP2000, Osaka, JapanHigh Energy Physics - Phenomenologytext