Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2000-07-03
Acta Phys.Polon. B31 (2000) 2413-2417
Physics
Nuclear Physics
Nuclear Theory
4 pages, 2 figures, Talk given at Meson 2000 Workshop, Krakow, Poland, 19-23 May 2000
Scientific paper
We have extended a model for the $\gamma N\to \pi\pi N$ reaction to virtual photons and selected the diagrams which have a $\Delta$ in the final state. The agreement found with the $\gamma_v p\to\Delta^0\pi^+$ and $\gamma_v p\to\Delta^{++}\pi^-$ reactions is good. The sensitivity of the results to $N\Delta$ transition form factors is also studied. The present reaction, selecting a particular final state, is an extra test for models of the $\gamma_{v} N\to \pi\pi N$ amplitude.
Nacher Jose C.
Oset Eulogio
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