Incorporating chiral symmetry and heavy quark theory in extrapolations of octet baryon charge radii

2000/08/23 by E. J. Hackett-Jones, E.J Hackett-Jones, Derek B. Leinweber +2 · 55 citations
Physics and Astronomy · #Baryon #Charge (physics) #Charge radius #Chiral perturbation theory #Electric charge #Extrapolation #High-Energy Particle Collisions Research #Lattice field theory #Nuclear physics #Nucleon #Octet #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Proton #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Quark #hep-lat

paper · pdf · doi:10.1016/s0370-2693(00)01115-1

published in Physics Letters B 494(1-2), 89-99 (Elsevier BV) · 14 pages, 7 figures

arxiv created 2000/08/23 · openalex publication_date 2000/11/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We extrapolate lattice calculations of electric charge radii of the spin-1/2 baryon octet to the physical regime. The extrapolation procedure incorporates chiral perturbation theory and heavy quark effective theory in the appropriate limits. In particular, this procedure includes the non-analytic, logarithmic terms from pion loops. The electric charge radii of the nucleons and Σ^- obtained from the chiral extrapolations agree well with experimental data. We make predictions for the charge radii of the remaining baryons in anticipation of future experimental measurements.

Citations

• Computers and the Theory of Statistics: Thinking the Unthinkable
• Chiral corrections to lattice calculations of charge radii
• Baryon form factors
• Measurement of the neutral weak form factors of the proton

Cited by

• Improved chiral properties of FLIC fermions
• Chiral analysis of quenched baryon masses
• Convergence of chiral effective field theory
• Extrapolation of lattice QCD results beyond the power-counting regime
• Leading quenching effects in the proton magnetic moment
• Chiral extrapolation of hadronic observables
• Nucleon electromagnetic form factors from lattice QCD
• Hadron mass extraction from lattice QCD
• Recent developments in quark nuclear physics
• Chiral Extrapolation of Lattice Data for Heavy Meson Hyperfine Splittings
• Aspects and consequences of a dressed-quark-gluon vertex
• A coherent interpretation of the form factors of the nucleon in terms of a pion cloud and constituent quarks