Chiral analysis of quenched baryon masses

2002/05/16 by R. D. Young, Derek B. Leinweber, D. B. Leinweber +3 · 19 citations
Physics and Astronomy · #Baryon #Chiral perturbation theory #High-Energy Particle Collisions Research #Lattice QCD #Meson #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #hep-lat

paper · pdf · doi:10.1103/physrevd.66.094507

published as Phys.Rev.D66:094507,2002 · 23 pages, 6 figures

arxiv created 2002/05/16 · openalex publication_date 2002/11/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

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 nonanalytic behavior (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.

Citations

• The magnetic moments of the octet baryons in quenched chiral perturbation theory
• Quenched chiral perturbation theory for baryon form factors
• Chiral corrections to lattice calculations of charge radii
• Chiral perturbation theory to one loop
• Incorporating chiral symmetry and heavy quark theory in extrapolations of octet baryon charge radii
• Chiral perturbation theory for the quenched approximation of QCD
• Lattice QCD calculations of the sigma commutator
• Incorporating chiral symmetry in extrapolations of octet baryon magnetic moments
• Quenched QCD withO(a)<mml:mn/>improvement: The spectrum of light hadrons
• Chiral Dynamics in Nucleons and Nuclei

Cited by

• Unquenched quark propagator in Landau gauge
• Improved chiral properties of FLIC fermions
• Hadron Properties with FLIC Fermions
• Precision electromagnetic structure of octet baryons in the chiral regime
• Physical Nucleon Properties from Lattice QCD
• Chiral and continuum extrapolation of partially-quenched lattice results
• Extrapolation of lattice QCD results beyond the power-counting regime
• Leading quenching effects in the proton magnetic moment
• Chiral extrapolation of hadronic observables
• Recent developments in quark nuclear physics
• Chiral extrapolation and physical insights
• Chiral structure in baryon magnetic moments
• Strange Electric Form Factor of the Proton
• Unified chiral analysis of the vector meson spectrum from lattice QCD
• Chiral Extrapolation of Lattice Data for Heavy Meson Hyperfine Splittings
• 1−+exotic meson at light quark masses
• The spin of the proton
• Systematic uncertainties in the precise determination of the strangeness magnetic moment of the nucleon
• Roper resonance in 2+1 flavor QCD