Conventional vs gauge couplings in elastic π<i>N</i> scattering

Autores
Mariano, Alejandro Edgardo; Barbero, César Alberto; Badagnani, Daniel Omar
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We perform a review on the importance of the Δ(1232 MeV) resonance in different processes, analyze the existing problems with the fields used to describe it theoretically and finally we make an analysis on the use of πNΔ alternative couplings in πN scattering. We compare numerically results for the elastic cross section obtained by 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 section data, we see that these results are by no means equivalent and that the differences between them cannot be compensated by a readjustment of free parameters of background contributions. We find that the conventional couplings work better than the gauge ones in describing the data.
Facultad de Ciencias Exactas
Materia
Física
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/84079

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oai_identifier_str oai:sedici.unlp.edu.ar:10915/84079
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network_name_str SEDICI (UNLP)
spelling Conventional vs gauge couplings in elastic π<i>N</i> scatteringMariano, Alejandro EdgardoBarbero, César AlbertoBadagnani, Daniel OmarFísicaWe perform a review on the importance of the Δ(1232 MeV) resonance in different processes, analyze the existing problems with the fields used to describe it theoretically and finally we make an analysis on the use of πNΔ alternative couplings in πN scattering. We compare numerically results for the elastic cross section obtained by 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 section data, we see that these results are by no means equivalent and that the differences between them cannot be compensated by a readjustment of free parameters of background contributions. We find that the conventional couplings work better than the gauge ones in describing the data.Facultad de Ciencias Exactas2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/84079enginfo:eu-repo/semantics/altIdentifier/issn/1742-6588info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/387/1/012010info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:05Zoai:sedici.unlp.edu.ar:10915/84079Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:05.609SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Conventional vs gauge couplings in elastic π<i>N</i> scattering
title Conventional vs gauge couplings in elastic π<i>N</i> scattering
spellingShingle Conventional vs gauge couplings in elastic π<i>N</i> scattering
Mariano, Alejandro Edgardo
Física
title_short Conventional vs gauge couplings in elastic π<i>N</i> scattering
title_full Conventional vs gauge couplings in elastic π<i>N</i> scattering
title_fullStr Conventional vs gauge couplings in elastic π<i>N</i> scattering
title_full_unstemmed Conventional vs gauge couplings in elastic π<i>N</i> scattering
title_sort Conventional vs gauge couplings in elastic π<i>N</i> scattering
dc.creator.none.fl_str_mv Mariano, Alejandro Edgardo
Barbero, César Alberto
Badagnani, Daniel Omar
author Mariano, Alejandro Edgardo
author_facet Mariano, Alejandro Edgardo
Barbero, César Alberto
Badagnani, Daniel Omar
author_role author
author2 Barbero, César Alberto
Badagnani, Daniel Omar
author2_role author
author
dc.subject.none.fl_str_mv Física
topic Física
dc.description.none.fl_txt_mv We perform a review on the importance of the Δ(1232 MeV) resonance in different processes, analyze the existing problems with the fields used to describe it theoretically and finally we make an analysis on the use of πNΔ alternative couplings in πN scattering. We compare numerically results for the elastic cross section obtained by 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 section data, we see that these results are by no means equivalent and that the differences between them cannot be compensated by a readjustment of free parameters of background contributions. We find that the conventional couplings work better than the gauge ones in describing the data.
Facultad de Ciencias Exactas
description We perform a review on the importance of the Δ(1232 MeV) resonance in different processes, analyze the existing problems with the fields used to describe it theoretically and finally we make an analysis on the use of πNΔ alternative couplings in πN scattering. We compare numerically results for the elastic cross section obtained by 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 section data, we see that these results are by no means equivalent and that the differences between them cannot be compensated by a readjustment of free parameters of background contributions. We find that the conventional couplings work better than the gauge ones in describing the data.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/84079
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dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/387/1/012010
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
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instname:Universidad Nacional de La Plata
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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