Determining gA using non-perturbatively O(a) improved Wilson fermions

Details Determining gA using non-perturbatively O(a) improved Wilson fermions Determining gA using non-perturbatively O(a) improved Wilson fermions

2000-10-28

arxiv.org/abs/hep-lat/0010059v1

Nucl.Phys.Proc.Suppl. 94 (2001) 307-310

Physics

High Energy Physics

High Energy Physics - Lattice

Lattice 2000 (Hadronic Matrix Elements), 4 pages

Scientific paper

10.1016/S0920-5632(01)00945-8

A completely non-perturbative estimate is given for gA using both quenched
and unquenched O(a) improved Wilson fermions. Particular attention is paid to
the determination of the axial renormalisation constant, ZA, using the Ward
identity for the propagator. For the quenched case, we have results at three
lattice spacings allowing a continuum extrapolation.

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