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dc.contributor.authorHasan, Nesreen
dc.contributor.authorGreen, Jeremy
dc.contributor.authorMeinel, Stefan
dc.contributor.authorEngelhardt, Michael
dc.contributor.authorKrieg, Stefan
dc.contributor.authorNegele, John
dc.contributor.authorPochinsky, Andrew
dc.contributor.authorSyritsyn, Sergey
dc.date.accessioned2019-08-05T22:06:02Z
dc.date.available2019-08-05T22:06:02Z
dc.date.issued2019-06-19
dc.identifier.citationHasan, N., Green, J., Meinel, S., Engelhardt, M., Krieg, S., Negele, J., ... & Syritsyn, S. (2019). Nucleon axial, scalar, and tensor charges using lattice QCD at the physical pion mass. Physical Review D, 99(11), 114505.en_US
dc.identifier.issn2470-0010
dc.identifier.doi10.1103/physrevd.99.114505
dc.identifier.urihttp://hdl.handle.net/10150/633676
dc.description.abstractWe 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 approximate to 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) over 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.en_US
dc.description.sponsorshipU.S. Department of Energy (DOE), Office of Science, Office of High Energy Physics [DE-SC0009913]; RIKEN BNL Research Center; Office of Nuclear Physics of the U.S. Department of Energy (DOE) [DE-FG02-96ER40965, DE-SC-0011090, DE-FC02-06ER41444]; Deutsche Forschungsgemeinschaft [SFB-TRR 55]; University of Arizona; Stony Brook Universityen_US
dc.language.isoenen_US
dc.publisherAmerican Physical Society (APS)en_US
dc.rightsPublished by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.en_US
dc.titleNucleon axial, scalar, and tensor charges using lattice QCD at the physical pion massen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Dept Physen_US
dc.identifier.journalPhysical Review Den_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.volume99
dc.source.issue11
refterms.dateFOA2019-08-05T22:06:02Z


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