2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/177531We present preliminary results for $ε'/ε$ calculated using HYP staggered fermions in the quenched approximation. We compare different choices of quenched penguin operators.3 pages, 4 figures, Contribution to Lattice 2004 International SymposiumHigh Energy Physics - Latticetext