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@INPROCEEDINGS{Horsley:872905,
      author       = {Horsley, Roger and Nakamura, Yoshifumi and Perlt, Holger
                      and Pleiter, D. and Rakow, P. E. L. and Schierholz, Gerrit
                      and Schiller, Arwed and Stuben, Hinnerk and Young, Ross D.
                      and Zanotti, J. M.},
      title        = {{T}he strange quark contribution to the spin of the
                      nucleon},
      publisher    = {Sissa Medialab Trieste, Italy},
      reportid     = {FZJ-2020-00370},
      pages        = {119},
      year         = {2019},
      comment      = {Proceedings of The 36th Annual International Symposium on
                      Lattice Field Theory — PoS(LATTICE2018) - Sissa Medialab
                      Trieste, Italy, 2019. - ISBN - doi:10.22323/1.334.0119},
      booktitle     = {Proceedings of The 36th Annual
                       International Symposium on Lattice
                       Field Theory — PoS(LATTICE2018) -
                       Sissa Medialab Trieste, Italy, 2019. -
                       ISBN - doi:10.22323/1.334.0119},
      abstract     = {Quark line disconnected matrix elements of an operator,
                      such as the axial current, are difficult to compute on the
                      lattice. The standard method uses a stochastic estimator of
                      the operator, which is generally very noisy. We discuss and
                      develop further our alternative approach using the
                      Feynman-Hellmann theorem which involves only evaluating
                      two-point correlation functions. This is applied to
                      computing the contribution of the quark spin to the nucleon
                      and in particular for the strange quark. In this process we
                      also pay particular attention to the development of an SU(3)
                      flavour breaking expansion for singlet operators.},
      month         = {Jul},
      date          = {2018-07-22},
      organization  = {The 36th Annual International
                       Symposium on Lattice Field Theory,
                       Michigan State University (East
                       Lansing), 22 Jul 2018 - 28 Jul 2018},
      cin          = {JSC},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {513 - Supercomputer Facility (POF3-513)},
      pid          = {G:(DE-HGF)POF3-513},
      typ          = {PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
      doi          = {10.22323/1.334.0119},
      url          = {https://juser.fz-juelich.de/record/872905},
}