Artículo
The use of N gauge couplings in elastic N scattering
Fecha de publicación:
02/2012
Editorial:
IOP Publishing
Revista:
Journal Of Physics G-nuclear And Particle Physics
ISSN:
0954-3899
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We perform a phenomenological analysis on the use of N(1232) alternative couplings in N scattering, within a single and well-controlled dynamical model. We compare numerical results for the elastic cross section obtained using the conventional couplings, already adopted in several reaction calculations, with those obtained with the so-called spin-3/2 gauge-invariant vertexes suggested recently. Confronting with experimental cross-sectional data in the region around the resonance, we see that these results are by no means equivalent and the differences between them cannot be eliminated by a readjustment of free parameters of the meson-exchange contributions. We find that the use of the conventional couplings leads to better fits. © 2012 IOP Publishing Ltd.
Palabras clave:
Pions
,
Nucleons
,
Delta
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Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Mariano, Alejandro Edgardo; Barbero, César Alberto; Badagnani, D.; The use of N gauge couplings in elastic N scattering; IOP Publishing; Journal Of Physics G-nuclear And Particle Physics; 39; 2-2012; 1-11
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