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Dynamical study of $γ^*N \leftrightarrow Δ$ transition with $N(e,e'p)π$

S. N. Yang·S. S. Kamalov
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Abstract

The Dubna-Mainz-Taipei (DMT) dynamical model for pion electromagnetic production, which describe well the existing data from threshold up to 1 GeV photon lab energy is presented and used to analyze recent data in the $Δ$ region . We find that within DMT model, the bare $Δ$ is almost spherical while the physical $Δ$ is oblate. The deformation is almost saturated by the pion cloud effects.

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S. N. Yang, S. S. Kamalov. 2005-09-28. Dynamical study of $γ^*N \leftrightarrow Δ$ transition with $N(e,e'p)π$. https://doi.org/10.1142/s0217751x06032204

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