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

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

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Geng, Li Sheng; Martín Camalich, Jorge; Álvarez Ruso, Luis; Vicente Vacas, Manuel José
Aquest document és un/a article, creat/da en: 2008
We report a theoretical study of the axial nucleon-to-delta (1232) (N -> Delta) transition form factors up to one-loop order in relativistic baryon chiral perturbation theory. We adopt a formalism in which the Delta 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.

    Geng, Li Sheng Martín Camalich, Jorge Álvarez Ruso, Luis Vicente Vacas, Manuel José 2008 Nucleon-to-delta axial transition form factors in relativistic baryon chiral perturbation theory Physical Review D 78 1 014011
http://dx.doi.org/10.1103/PhysRevD.78.014011
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