Chiral Analysis of Quenched Baryon Masses

Abstract

We extend to quenched QCD an earlier investigation of the chiral structure of the masses of the nucleon and the delta in lattice simulations of full QCD. Even after including the meson-loop self-energies which give rise to the leading and next-to-leading non-analytic behaviour (and hence the most rapid variation in the region of light quark mass), we find surprisingly little curvature in the quenched case. Replacing these meson-loop self-energies by the corresponding terms in full QCD yields a remarkable level of agreement with the results of the full QCD simulations. This comparison leads to a very good understanding of the origins of the mass splitting between these baryons.

23 pages, 6 figures

References in corpus (8)

• The QCD spectrum with three quark flavors
• Hadron Masses From Novel Fat-Link Fermion Actions
• Chiral Behaviour of the Rho Meson in Lattice QCD
• Moments of Isovector Quark Distributions from Lattice QCD
• The Magnetic Moments of the Octet Baryons in Quenched Chiral Perturbation Theory
• Witten-Veneziano Relation, Quenched QCD, and Overlap Fermions
• Chiral Extrapolation: An Analogy with Effective Field Theory
• Quenched chiral perturbation theory for baryon form factors

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