Chiral extrapolation of octet-baryon charge radii

Abstract

The charge radii of octet-baryons obtained in quenched lattice-QCD calculations are extrapolated within heavy-baryon chiral perturbation theory. Finite-range regularization (FRR) is applied to improve the convergence of the chiral expansion and to provide estimates of quenching artifacts. Lattice values of quark distribution radii and baryon charge radii for $\mpi^2$ in the range (0.1, 0.7)$\gev^2$ are described very well with FRR. Upon estimating corrections for both finite-volume and quenching effects, the obtained charge radii of the proton, neutron and ${\Sigma }^{-}$ are in good agreement with experimental measurements. The predicted charge radii of the remaining octet-baryons have not yet been measured and present a challenge to future experiments.

21 pages, 14 figures

References in corpus (42)

• Chiral Perturbation Theory and Baryon Properties
• Low energy analysis of the nucleon electromagnetic form factors
• Physical Nucleon Properties from Lattice QCD
• Accurate Scale Determinations for the Wilson Gauge Action
• Chiral extrapolation of lattice moments of proton quark distributions
• Precise determination of the strangeness magnetic moment of the nucleon
• Quenched Chiral Perturbation Theory for Baryons
• Chiral Analysis of Quenched Baryon Masses
• Baryon form factors in chiral perturbation theory
• Nucleon electromagnetic form factors on the lattice and in chiral effective field theory
• Convergence of chiral effective field theory
• Octet and Decuplet Baryons in a Covariant and Confining Diquark-Quark Model
• Precision Electromagnetic Structure of Octet Baryons in the Chiral Regime
• Nucleon Magnetic Moments Beyond the Perturbative Chiral Regime
• Strange Electric Form Factor of the Proton
• The nucleon electromagnetic form factors from Lattice QCD
• Electromagnetic Form Factors of the Nucleon in an Improved Quark Model
• Cutoff schemes in chiral perturbation theory and the quark mass expansion of the nucleon mass
• Electromagnetic form factors of the nucleon in chiral perturbation theory including vector mesons
• Electromagnetic form factors of the nucleon in relativistic baryon chiral perturbation theory
• On Nucleon Electromagnetic Form Factors
• Baryon Form Factors of Relativistic Constituent-Quark Models
• Measurement of the Sigma^- Charge Radius by Sigma^- Electron Elastic Scattering
• Leading Quenching Effects in the Proton Magnetic Moment
• The Magnetic Moments of the Octet Baryons in Quenched Chiral Perturbation Theory
• Chiral Symmetry and the Intrinsic Structure of the Nucleon
• Quark Contributions to Baryon Magnetic Moments in Full, Quenched and Partially Quenched QCD
• In Search of the Chiral Regime
• A covariant view on the nucleons' quark core
• Baryon Charge Radii and Quadrupole Moments in the 1/N_c Expansion: The 3-Flavor Case
• Hyperons in Two Flavor Chiral Perturbation Theory
• Charge Radii of the Meson and Baryon Octets in Quenched and Partially Quenched Chiral Perturbation Theory
• Baryon form factors
• Electromagnetic form factors of the baryon octet in the perturbative chiral quark model
• Covariant baryon charge radii and magnetic moments in a chiral constituent quark model
• Chiral Corrections to Lattice Calculations of Charge Radii
• Octet Baryon Charge Radii, Chiral Symmetry and Decuplet Intermediate States
• Baryon Electromagnetic Properties in Partially Quenched Heavy Hadron Chiral Perturbation Theory
• Probing the convergence of perturbative series in baryon chiral perturbation theory
• Baryon form factors in a diquark-quark bound state description
• Electromagnetic Form Factors with FLIC Fermions
• Probing Nucleon Structure on the Lattice

Cited by in corpus (39)

• Nucleon form factors with 2+1 flavor dynamical domain-wall fermions
• Nucleon Electromagnetic Form Factors from Lattice QCD using 2+1 Flavor Domain Wall Fermions on Fine Lattices and Chiral Perturbation Theory
• Magnetic form factors of the octet baryons from lattice QCD and chiral extrapolation
• Recent developments in SU(3) covariant baryon chiral perturbation theory
• Octet baryon electromagnetic form factors in nuclear medium
• Magnetic moments and transition magnetic moments of $P_c$ and $P_{cs}$ states
• Non-perturbative evaluation of some QED contributions to the muonic hydrogen $\mathbf{n}=2$ Lamb shift and hyperfine structure
• Electric form factors of the octet baryons from lattice QCD and chiral extrapolation
• Octet baryon electromagnetic form factors in a relativistic quark model
• Finite-volume and partial quenching effects in the magnetic polarizability of the neutron
• QED confronts the radius of the proton
• Magnetic polarisability of the nucleon using a Laplacian mode projection
• Chiral extrapolations for nucleon magnetic moments
• Ground state baryons in the flux-tube three-body confinement model using Diffusion Monte Carlo
• Strange magnetic form factor of nucleon in heavy baryon chiral effective approach at next to leading order
• Nucleon electromagnetic form factors with non-local chiral effective Lagrangian
• Hyperon elastic electromagnetic form factors in the space-like momentum region
• Neutron magnetic polarisability with Landau mode operators
• The magnetic moments and electromagnetic form factors of the decuplet baryons in chiral perturbation theory
• The First Moments of Nucleon Generalized Parton Distributions
• Chiral extrapolation of nucleon magnetic moments at next-to-leading-order
• Strange form factors of nucleon with nonlocal chiral effective Lagrangian
• Electromagnetic form factors of octet baryons with the nonlocal chiral effective theory
• Study of baryon octet electromagnetic form factors in perturbative chiral quark model
• Chiral Effective Theory Methods and their Application to the Structure of Hadrons from Lattice QCD
• Dirac form factors and electric charge radii of baryons in the combined chiral and 1/N_c expansions
• Finite-volume corrections to charge radii
• Chiral extrapolation and finite-volume dependence of the hyperon vector couplings
• Pure sea-quark contributions to the magnetic form factors of $\Sigma$ baryons
• Solid quantization for non-point particles
• Nucleon magnetic form factors with non-local chiral effective Lagrangian
• Chiral extrapolation of nucleon axial charge $g_A$ in effective field theory
• Electroweak form factors of baryons in dense nuclear matter
• Sea contribution to the charge radii and quadrupole moment of $J^P={\frac{1}{2}}^{+},{\frac{3}{2}}^{+}$ baryons
• Magnetic Polarisability of Octet Baryons via Lattice QCD
• Analysis of excited quark propagator effects on neutron charge form factor
• Sea quark contributions to nucleon electromagnetic form factors with the nonlocal chiral effective Lagrangian
• Chiral extrapolation of the doubly charmed baryons magnetic properties
• Hadron Structure on the Lattice