Electromagnetic form factors of the Delta in a S-wave approach

Abstract

Without any further adjusting of parameters, a relativistic constituent quark model, successful in the description of the data for the nucleon elastic form factors and of the dominant contribution for the nucleon to Delta electromagnetic transition, is used here to predict the dominant electromagnetic form factors of the Delta baryon. The model is based on a simple Delta wave function corresponding to a quark-diquark system in an S-state. The results for E0 and M1 are consistent both with experimental results and lattice calculations. The remaining form factors E2 and M3 vanish, given the symmetric structure taken for the Delta.

11 pages, 3 figures

References in corpus (10)

• Electromagnetic excitation of the Delta(1232)-resonance
• Chiral Effective-Field Theory in the Delta(1232) Region: Pion Electroproduction on the Nucleon
• A pure S-wave covariant model for the nucleon
• The nucleon to Delta electromagnetic transition form factors in lattice QCD
• D-state effects in the electromagnetic N-Delta transition
• A Covariant model for the nucleon and the $\Delta$
• Chiral extrapolation of nucleon magnetic form factors
• Fixed-axis polarization states: covariance and comparisons
• The Pion Cloud of the Nucleon: Facts and popular Fantasies
• Electromagnetic form factors of the Delta baryon

Cited by in corpus (11)

• Electromagnetic structure of the lowest-lying decuplet resonances in covariant chiral perturbation theory
• Delta and Omega electromagnetic form factors in a Dyson-Schwinger/Bethe-Salpeter approach
• Electromagnetic properties of the Delta(1232) and decuplet baryons in the self-consistent SU(3) chiral quark-soliton model
• Extracting the Omega- electric quadrupole moment from lattice QCD data
• Magnetic Dipole, Electric Quadrupole and Magnetic Octupole Moments of the $\Delta$ Baryons in Light Cone QCD Sum Rules
• ${\gamma }^{\ast }N\to N^{\ast }(1520)$ form factors in the timelike regime
• The shape of the $\Delta$ baryon in a covariant spectator quark model
• Quadrupole moments of low lying baryons with spin 1/2^+, spin 3/2^+, and spin 3/2^+ \to 1/2^+ transitions
• Electromagnetic form factors of the ${\Omega }^{-}$ baryon in the spacelike and timelike regions
• Electroweak form factors of baryons in dense nuclear matter
• Electromagnetic polarizabilities of the spin-$\frac{3}{2}$ baryons in heavy baryon chiral perturbation theory