Phys. Rev. Lett. 92, 242002 (2004) [4 pages]Physical Nucleon Properties from Lattice QCDReceived 10 March 2003; published 16 June 2004 We investigate various resummations of the chiral expansion and fit to the extremely accurate lattice QCD data for the mass of the nucleon recently obtained by the CP-PACS group. Using a variety of finite-range regulators, we demonstrate a remarkably robust chiral extrapolation of the nucleon mass. The systematic error associated with the chiral extrapolation alone is estimated to be less than 1%. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.242002
DOI:
10.1103/PhysRevLett.92.242002
PACS:
12.39.Fe, 12.38.Aw, 12.38.Gc, 14.20.Dh
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