Magnetic dipole moment of the $Δ^+$(1232) from the $γp \to γπ^0 p$ reaction

Details Magnetic dipole moment of the $Δ^+$(1232) from the $γp \to γπ^0 p$ reaction Magnetic dipole moment of the $Δ^+$(1232) from the $γp \to γπ^0 p$ reaction

2001-05-07

arxiv.org/abs/hep-ph/0105060v1

Phys.Rev. C64 (2001) 065202

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, 11 figures

Scientific paper

10.1103/PhysRevC.64.065202

The $\gamma p \to \gamma \pi^0 p$ reaction in the $\Delta(1232)$-resonance region is investigated as a method to access the $\Delta^+(1232)$ magnetic dipole moment. The calculations are performed within the context of an effective Lagrangian model containing both the $\Delta$-resonant mechanism and a background of non-resonant contributions to the $\gamma p \to \gamma \pi^0 p$ reaction. Results are shown both for existing and forthcoming $\gamma p \to \gamma \pi^0 p$ experiments. In particular, the sensitivity of unpolarized cross sections and photon asymmetries to the $\Delta^+$ magnetic dipole moment is displayed for those forthcoming data.

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