We study the behaviour of the vector and axial curr:ent renormalisation constants Z(V) and Z(A) as a function of the quark mass, m(q). We show that sizeable O(am(q)) and O(g(0)(2)am(q)) systematic effects are present in the Wilson and Clover cases respectively. We find that the prescription of Kronfeld, Lepage and Mackenzie for correcting these artefacts is not always successful.
Crisafulli, M., Lubicz, V., Martinelli, G., Vladikas, A. (1995). Dependence of the current renormalization-constants on the quark mass. In Lattice 94 : proceedings of the XIIth International Symposium on Lattice Field Theory (pp.400-402).
Dependence of the current renormalization-constants on the quark mass
LUBICZ, Vittorio;
1995-01-01
Abstract
We study the behaviour of the vector and axial curr:ent renormalisation constants Z(V) and Z(A) as a function of the quark mass, m(q). We show that sizeable O(am(q)) and O(g(0)(2)am(q)) systematic effects are present in the Wilson and Clover cases respectively. We find that the prescription of Kronfeld, Lepage and Mackenzie for correcting these artefacts is not always successful.File in questo prodotto:
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