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Dynamical model of weak pion production reactions

Mar, 2003

28 pages

Published in:

Phys.Rev.C 67 (2003) 065201

e-Print:

nucl-th/0303050 [nucl-th]

DOI:

10.1103/PhysRevC.67.065201

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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-

\Delta

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-

\Delta

transitions predicted by the constituent quark model are consistent with the existing neutrino induced pion production data in the

\Delta

region.

13.60.-r
24.10.-i
25.30.Pt
14.20.Gk
neutrino nucleon: exclusive reaction
charged current
pi: neutrinoproduction
CVC model
effective Lagrangian: chiral
transformation: unitarity

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