Nucleon form factors and static properties of baryons in a quark model

The nucleon electromagnetic form factors GEᵖ(q²), GMᵖ(q²), GMⁿ(q²), and the axial-vector form factor GA(q²) are calculated in a simple independent-quark model based on the Dirac equation with a logarithmic confining potential of the form V^'(r)=(1+γ⁰)aln(r/b). The respective rms radii associated with GEᵖ(q²) and GA(q²) come out as (〈r²〉EP)1/2=0.938 fm and 〈rA²〉1/2=0.953 fm. The magnetic moments, charge radii, and axial-vector coupling-constant ratios for octet baryons are also calculated with the appropriate center-of-mass correction. The results so obtained are quite comparable to experimental data.