ar X iv : h ep - l at / 9 81 00 18 v 1 7 O ct 1 99 8 1 Non - perturbative Renormalization Constants using Ward Identities ∗
نویسندگان
چکیده
We extend the application of vector and axial Ward identities to calculate bA, bP and bT , coefficients that give the mass dependence of the renormalization constants of the corresponding bilinear operators in the quenched theory. The extension relies on using operators with non-degenerate quark masses. It allows a complete determination of the O(a) improvement coefficients for bilinears in the quenched approximation using Ward Identities alone. Only the scale dependent normalization constants Z P (or Z 0 S) and ZT are undetermined. We present results of a pilot numerical study using hadronic correlators.
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