2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/203114We point out that the standard chromomagnetic penguin dipole operator has a counterpart corresponding to off-shell momenta for external quarks. By employing the chiral quark model, we show that this new dipole penguin operator has the same bosonisation as the standard Q_6 operator. Accordingly, this new operator enlarges by ~ 5 % the referent Q_6 contribution, which gives the dominant contribution to the CP-violating ratio epsilon'/epsilon and also gives an important contribution to the Delta I = 1/2 amplitude.17 pages, 1 PS figure, LaTeX, corresponds to published versionHigh Energy Physics - Phenomenologytext