Inelastic photon scattering and the magnetic moment of the $\Delta$   (1232) resonance
  The reaction $\gamma+p\to\gamma'+p+\pi^0$ has been suggested as a means to deduce the $\Delta^+$ magnetic moment. The cross section for this process is estimated in both the constituent quark model and an effective Lagrangian procedure. The resulting total cross section is of the order 5-10 nb, which is at the limit of present experimental capabilities. 
D. Drechsel, M. Vanderhaeghen and M.M. Giannini, E. Santopinto