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@ARTICLE{Orth:48657,
      author       = {Orth, B. and Lippert, T. and Schilling, K.},
      title        = {{F}inite-{S}ize {E}ffects in {L}attice {QCD} with
                      {D}ynamical {W}ilson {F}ermions},
      journal      = {Physical review / D},
      volume       = {72},
      number       = {1},
      issn         = {1550-7998},
      address      = {[S.l.]},
      publisher    = {Soc.},
      reportid     = {PreJuSER-48657},
      pages        = {014503},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {As computing resources are limited, choosing the parameters
                      for a full lattice QCD simulation always amounts to a
                      compromise between the competing objectives of a lattice
                      spacing as small, quarks as light, and a volume as large as
                      possible. Aiming to push unquenched simulations with the
                      Wilson action towards the computationally expensive regime
                      of small quark masses we address the question whether one
                      can possibly save computing time by extrapolating results
                      from small lattices to the infinite volume, prior to the
                      usual chiral and continuum extrapolations. In the present
                      work the systematic volume dependence of simulated pion and
                      nucleon masses is investigated and compared with a
                      long-standing analytic formula by Luscher and with results
                      from chiral perturbation theory (ChPT). We analyze data from
                      hybrid Monte Carlo simulations with the standard
                      (unimproved) two-flavor Wilson action at two different
                      lattice spacings of a approximate to 0.08 and 0.13 fm. The
                      quark masses considered correspond to approximately $85\%$
                      and $50\%$ (at the smaller a) and $36\%$ (at the larger a)
                      of the strange quark mass. At each quark mass we study at
                      least three different lattices with L/a=10 to 24 sites in
                      the spatial directions (L=0.85-2.08 fm). We find that an
                      exponential ansatz fits the volume dependence of the pion
                      masses well, but with a coefficient about an order of
                      magnitude larger than the theoretical leading-order
                      prediction. In the case of the nucleon we observe a
                      remarkably good agreement between our lattice data and a
                      recent formula from relativistic baryon ChPT.},
      keywords     = {J (WoSType)},
      cin          = {ZAM},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB62},
      pnm          = {Betrieb und Weiterentwicklung des Höchstleistungsrechners},
      pid          = {G:(DE-Juel1)FUEK254},
      shelfmark    = {Astronomy $\&$ Astrophysics / Physics, Particles $\&$
                      Fields},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000230889400040},
      doi          = {10.1103/PhysRevD.72.014503},
      url          = {https://juser.fz-juelich.de/record/48657},
}