DEPENDENCE OF THE CURRENT RENORMALISATION CONSTANTS ON THE QUARK MASS

Details DEPENDENCE OF THE CURRENT RENORMALISATION CONSTANTS ON THE QUARK MASS DEPENDENCE OF THE CURRENT RENORMALISATION CONSTANTS ON THE QUARK MASS

1995-02-16

arxiv.org/abs/hep-lat/9502012v1

Nucl.Phys.Proc.Suppl.42:400-402,1995

Physics

High Energy Physics

High Energy Physics - Lattice

Contribution to Lattice'94, 3 pages PostScript, uuencoded compressed.

Scientific paper

10.1016/0920-5632(95)00262-8

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 $O(am_q)$ 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.

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