Pion photoproduction in the delta resonance region

Abstract

We have updated our multipole analyses to incorporate new data from the low-energy and delta resonance regions. We note a slight decrease in our estimate of the delta photo-decay amplitudes. This agrees with results found in Compton scattering. Our values are also in good agreement with a previous RPI determination. We have reexamined our determinations of the E2/M1 ratio at the resonance energy and at the pole. We find an E2/M1 ratio (at the pole) which is in good agreement with recent the Mainz value.

8 pages of text. One typo corrected and an omitted reference added

Cited by in corpus (15)

• Differential cross section measurement of eta photoproduction on the proton from threshold to 1100 MeV
• Chiral symmetry and the Delta-Nucleon transition form factors
• Magnetic dipole moment of the ${\Delta }^{+}$(1232) from the $\gamma p\to \gamma {\pi }^{0}p$ reaction
• Sum rule for the backward spin polarizability of the nucleon from a backward dispersion relation
• Compton Scattering by Nuclei
• Problems with Extraction of the Nucleon to Delta(1232) Photonic Amplitudes
• Cooperative damping mechanism of the resonance in the nuclear photoabsorption
• Nuclear Photoabsorption at Photon Energies between 300 and 850 Mev
• $\Delta$(1232) electroproduction amplitudes in chiral soliton models of the nucleon
• Higher Nucleon Resonances in Exclusive $(\gamma ,\pi N)$ Reactions on Nuclei
• Stability of the E2/M1 ratio at the T-matrix pole
• πN and ηp deexcitation channels of the N^* and Δbaryonic resonances between 1470 and 1680 MeV
• Remarks on the Delta(+) mass
• The pion photoproduction in the Δ(1232) region
• Irreducible tensor approach to spin observables in photo production of mesons with arbitrary spin-parity $s^{\pi }$