Baryon Masses from Lattice QCD: Beyond the Perturbative Chiral Regime

Abstract

Consideration of the analytic properties of pion-induced baryon self-energies leads to new functional forms for the extrapolation of light baryon masses. These functional forms reproduce the leading non-analytic behavior of chiral perturbation theory, the correct non-analytic behavior at the Nπ threshold and the appropriate heavy-quark limit. They involve… (More)

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