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@ARTICLE{Hasan:863701,
author = {Hasan, Nesreen and Green, Jeremy and Meinel, Stefan and
Engelhardt, Michael and Krieg, Stefan and Negele, John and
Pochinsky, Andrew and Syritsyn, Sergey},
title = {{N}ucleon axial, scalar, and tensor charges using lattice
{QCD} at the physical pion mass},
journal = {Physical review / D},
volume = {99},
number = {11},
issn = {2470-0010},
address = {Melville, NY},
publisher = {Inst.812068},
reportid = {FZJ-2019-03706},
pages = {114505},
year = {2019},
abstract = {We report on lattice QCD calculations of the nucleon
isovector axial, scalar, and tensor charges. Our
calculations are performed on two 2+1-flavor ensembles
generated using a 2-HEX-smeared Wilson-clover action at the
physical pion mass and lattice spacings $a\approx$ 0.116 and
0.093 fm. We use a wide range of source-sink separations -
eight values ranging from roughly 0.4 to 1.4 fm on the
coarse ensemble and three values from 0.9 to 1.5 fm on the
fine ensemble - which allows us to perform an extensive
study of excited-state effects using different analysis and
fit strategies. To determine the renormalization factors, we
use the nonperturbative Rome-Southampton approach and
compare RI'-MOM and RI-SMOM intermediate schemes to estimate
the systematic uncertainties. Our final results are computed
in the MS-bar scheme at scale 2 GeV. The tensor and axial
charges have uncertainties of roughly 4\%, $g_T=0.972(41)$
and $g_A=1.265(49)$. The resulting scalar charge,
$g_S=0.927(303)$, has a much larger uncertainty due to a
stronger dependence on the choice of intermediate
renormalization scheme and on the lattice spacing.},
cin = {JSC / NIC},
ddc = {530},
cid = {I:(DE-Juel1)JSC-20090406 / I:(DE-Juel1)NIC-20090406},
pnm = {511 - Computational Science and Mathematical Methods
(POF3-511) / The Proton radius and other aspects of nucleon
structure from Lattice QCD $(hmz37_20161101)$},
pid = {G:(DE-HGF)POF3-511 / $G:(DE-Juel1)hmz37_20161101$},
typ = {PUB:(DE-HGF)16},
eprint = {1903.06487},
howpublished = {arXiv:1903.06487},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:1903.06487;\%\%$},
UT = {WOS:000473023900003},
doi = {10.1103/PhysRevD.99.114505},
url = {https://juser.fz-juelich.de/record/863701},
}