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arXiv · 0801.4495

Nucleon-to-Delta axial transition form factors in relativistic baryon chiral perturbation theory

L. S. Geng·J. Martin Camalich·L. Alvarez-Ruso·M. J. Vicente Vacas
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Abstract

We report a theoretical study of the axial Nucleon to Delta(1232) ($N\toΔ$) transition form factors up to one-loop order in relativistic baryon chiral perturbation theory. We adopt a formalism in which the $Δ$ couplings obey the spin-3/2 gauge symmetry and, therefore, decouple the unphysical spin-1/2 fields. We compare the results with phenomenological form factors obtained from neutrino bubble chamber data and in quark models.

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L. S. Geng, J. Martin Camalich, L. Alvarez-Ruso, M. J. Vicente Vacas. 2008-07-10. Nucleon-to-Delta axial transition form factors in relativistic baryon chiral perturbation theory. https://doi.org/10.1103/physrevd.78.014011

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