出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We discuss a new method to determine the low-energy couplings of the DS = 1 weak Hamiltonian
in the e -regime. It relies on a matching of the topological poles in 1/m2 of three-point functions
of two pseudoscalar densities and a four-fermion operator computed in lattice QCD, to the same
observables in the Chiral Effective Theory. We present the results of a NLO computation in
chiral perturbation theory of these correlation functions together with some preliminary numerical
results.
