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Nucleon scalar and tensor charges from lattice QCD with light Wilson quarks

Author(s)
Green, Jeremy Russell; Negele, John W.; Pochinsky, Andrew
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Abstract
We present 2+1 flavor lattice QCD calculations of the nucleon scalar and tensor charges. Using the BMW clover-improved Wilson action with pion masses between 149 and 356 MeV and three source-sink separations between 0.9 and 1.4 fm, we achieve good control over excited-state contamination and extrapolation to the physical pion mass. As a consistency check, we also present results from calculations using unitary domain wall fermions with pion masses between 297 and 403 MeV, and using domain wall valence quarks and staggered sea quarks with pion masses between 293 and 597 MeV.
Date issued
2012-12
URI
http://hdl.handle.net/1721.1/76799
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review D
Publisher
American Physical Society
Citation
Green, J. R. et al. “Nucleon Scalar and Tensor Charges from Lattice QCD with Light Wilson Quarks.” Physical Review D 86.11 (2012). © 2012 American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918

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