DEPENDENCE OF THE CURRENT RENORMALISATION CONSTANTS ON THE QUARK MASS

M. Crisafulli; V. Lubicz; G. Martinelli; A. Vladikas

doi:10.1016/0920-5632(95)00262-8

paper

DEPENDENCE OF THE CURRENT RENORMALISATION CONSTANTS ON THE QUARK MASS

arXiv:hep-lat/9502012 · doi:10.1016/0920-5632(95)00262-8

Abstract

We study the behaviour of the vector and axial current renormalisation constants $Z_{V}$ and $Z_{A}$ as a function of the quark mass, $m_{q}$ . We show that sizeable $O (a m_{q})$ and $O (g_{0}^{2} a m_{q})$ 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.

arXiv commentContribution to Lattice'94, 3 pages PostScript, uuencoded compressed.

References in corpus (1)

Semi-leptonic Decays of Heavy Flavours on a Fine Grained Lattice