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

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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.
A few clarifying remarks added; version to appear in Physical Review D

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/205322

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0801.4495
 http://arxiv.org/abs/0801.4495
 Phys.Rev.D78:014011,2008
 doi:10.1103/PhysRevD.78.014011

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arXiv