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@ARTICLE{Gsken:860318,
author = {Güsken, S. and Ueberholz, P. and Viehoff, J. and Eicker,
N. and Lippert, T. and Schilling, K. and Spitz, A. and
Struckmann, T.},
title = {{F}lavor singlet axial vector coupling of the proton with
dynamical {W}ilson fermions},
journal = {Physical review / D},
volume = {59},
number = {11},
issn = {0556-2821},
address = {Melville, NY},
publisher = {Inst.812068},
reportid = {FZJ-2020-03099},
pages = {114502},
year = {1999},
abstract = {We present the results of a full QCD lattice calculation of
the flavor singlet axial vector coupling G1A of the proton.
The simulation has been carried out on a 163×32 lattice at
β=5.6 with nf=2 dynamical Wilson fermions. It turns out
that the statistical quality of the connected contribution
to G1A is excellent, whereas the disconnected part is
accessible but suffers from large statistical fluctuations.
Using a 1st order tadpole improved renormalization constant
ZA, we estimate G1A=0.20(12).},
ddc = {530},
typ = {PUB:(DE-HGF)16},
doi = {10.1103/PhysRevD.59.114502},
url = {https://juser.fz-juelich.de/record/860318},
}