Results on K --> 2pi decays at O(p^6) and epsilon'/epsilon from an effective chiral lagrangian approach

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148147We have combined a new systematic calculation of mesonic matrix elements at O(p^6) from an effective chiral lagrangian approach using Wilson coefficients taken from [G.Buchalla, A.J.Buras, M.E.Lautenbacher, Rev.Mod.Phys. 68 (1996) 1125], derived in the framework of perturbative QCD, and restricted partly by experimental data. We derive complete expressions for K --> 2pi amplitudes and give new estimates for epsilon'/epsilon.23 pages, LaTeX, 2 figures, uses epsf.styHigh Energy Physics - PhenomenologyResults on K --> 2pi decays at O(p^6) and epsilon'/epsilon from an effective chiral lagrangian approachtext