Results on K --> 2pi decays at O(p6) and epsilon'/epsilon from an effective chiral lagrangian approach
A. A. Bel'kov, G. Bohm, A. V. Lanyov, A. A. Moshkin
Abstract
We have combined a new systematic calculation of mesonic matrix elements at O(p6) 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.
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