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

preprint2005arXivOpen access

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

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Dynamical study of γ∗N↔Δγ^*N \leftrightarrow Δγ∗N↔Δ transition with N(e,e′p)πN(e,e'p)πN(e,e′p)π

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