Photoabsorption on a Nucleon in the D_{13} Resonance Energy Region

Ochi, Kazuyuki; Hirata, Michihiro; Takaki, Takashi

Photoabsorption on a Nucleon in the D_{13} Resonance Energy Region

Authors

Ochi, Kazuyuki

Hirata, Michihiro

Takaki, Takashi

Description

We present a simple model for the $γN \to ππN$ reaction which reproduces the cross sections of the $π^+ π^- p, π^+ π^- n, π^+ π^0 n$ and $π^- π^0 p$ channels over the range of the energies 0.41-0.85 GeV. We use the dynamical model for the resonances, Δ(1232), N^*(1520) and ρ-meson. The total photoabsorption off a nucleon is also discussed.
Revtex file, 25 pages, 8 figures, uses here.sty, psfig.sty