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arXiv · hep-lat/9710071

Non-perturbative renormalization constants on the lattice from flavour non-singlet Ward identities

G. M. de Divitiis·R. Petronzio
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Abstract

By imposing axial and vector Ward identities for flavour-non-singlet currents, we estimate in the quenched approximation the non-perturbative values of combinations of improvement coefficients, which appear in the expansion around the massless case of the renormalization constants of axial, pseudoscalar, vector, scalar non-singlet currents and of the renormalized mass. These coefficients are relevant for the completion of the improvement programme to O(a) of such operators. The simulations are performed with a clover Wilson action non-perturbatively improved.

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G. M. de Divitiis, R. Petronzio. 1997-10-20. Non-perturbative renormalization constants on the lattice from flavour non-singlet Ward identities. https://doi.org/10.1016/s0370-2693(97)01444-5

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