Magnetic moment of $Δ^{++}$ baryon in QCD string approach

Abstract

Magnetic moment of the $Δ^{++}$ baryon is computed within the new approach based on the QCD string Hamiltonian. The string tension $σ$ is only dimensionful quantity forming magnetic moments of both nucleon and $Δ$, but color Coulomb and spin-spin interactions cancel each other in the nucleon case while in $Δ$ they add coherently. The result $μ_Δ = 4.36μ_N$ is in good agreement with experimental data.