Chiral extrapolations of baryon masses for unquenched three-flavor lattice simulations

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Published 9 August 2004 • Published under licence by IOP Publishing Ltd
, , Citation Matthias Frink and Ulf-G. Meißner JHEP07(2004)028 DOI 10.1088/1126-6708/2004/07/028

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1 Institut für Kernphysik (Theorie), Forschungszentrum Jülich, D-52425 Jülich, Germany

2 Helmholtz-Institut für Strahlen- und Kernphysik (Theorie), Universität Bonn, Nußallee 14-16, D-53115 Bonn, Germany

Dates

  1. Received 27 April 2004
  2. Accepted 14 July 2004
  3. Published

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1126-6708/2004/07/028

Abstract

We have analyzed the chiral expansion of the baryon masses to second order in the quark masses, including strong isospin violation. The calculations are performed in Lorentz-invariant baryon chiral perturbation theory. Chiral extrapolation functions for three-flavor unquenched lattice simulations are derived. The matching to the two-flavor case and the sigma terms are also considered.

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10.1088/1126-6708/2004/07/028