Octet Baryon Charge Radii, Chiral Symmetry and Decuplet Intermediate States

Abstract

We compute the octet baryon charge radii to O(1/Heavy^3) in heavy baryon chiral perturbation theory. We examine the effect of including the decuplet of spin-3/2 baryons explicitly. We find that it does no t improve the level of agreement between the HBchiPT and experimental values for the Sigma^- charge radius.

9 pages, 2 figures. Uses axodraw.sty, included

References in corpus (3)

• Complete one-loop analysis of the nucleon's spin polarizabilities
• Spin polarisabilities of the nucleon at NLO in the chiral expansion
• Baryon Octet magnetic moments in $\chi$PT: More on the importance of the Decuplet

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• Magnetic moments and transition magnetic moments of $P_c$ and $P_{cs}$ states
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• The electromagnetic decays of the charmed and bottom baryons in chiral perturbation theory
• Octet baryon electromagnetic form factors in a relativistic quark model
• Charge Radii of the Meson and Baryon Octets in Quenched and Partially Quenched Chiral Perturbation Theory
• Consistency of the $\pi \Delta$ interaction in chiral perturbation theory
• Electromagnetic form factors of spin 1/2 doubly charmed baryons
• Virtual decuplet effects on octet baryon masses in covariant baryon chiral perturbation theory
• Sum rules for baryon decuplet magnetic moments
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• Decuplet contribution to the meson-baryon scattering lengths
• The magnetic moments and electromagnetic form factors of the decuplet baryons in chiral perturbation theory
• Chiral Corrections to Hyperon Axial Form Factors
• Hyperon Electromagnetic Properties in Two-Flavor Chiral Perturbation Theory
• Lattice Results on the Connected Neutron Charge Radius
• Dirac form factors and electric charge radii of baryons in the combined chiral and 1/N_c expansions
• Importance of Sea Contribution to Nucleons
• The Δcontribution to the parity-violating nucleon-nucleon force
• Nucleon magnetic form factors with non-local chiral effective Lagrangian
• Sea contribution to the charge radii and quadrupole moment of $J^P={\frac{1}{2}}^{+},{\frac{3}{2}}^{+}$ baryons
• Chiral Perturbation Theory on the Lattice and its Applications