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Dynamical Model of Weak Pion Production Reactions

T. Sato·D. Uno·T. -S. H. Lee
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Abstract

The dynamical model of pion electroproduction has been extended to investigate the weak pion production reactions. The predicted cross sections of neutrino-induced pion production reactions are in good agreement with the existing data. We show that the renormalized(dressed) axial N-$Δ$ form factor contains large dynamical pion cloud effects and this renormalization effects are crucial in getting agreement with the data. We conclude that the N-$Δ$ transitions predicted by the constituent quark model are consistent with the existing neutrino induced pion production data in the $Δ$ region.

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T. Sato, D. Uno, T. -S. H. Lee. 2003-03-20. Dynamical Model of Weak Pion Production Reactions. https://doi.org/10.1103/physrevc.67.065201

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