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
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/84079
Ver los metadatos del registro completo
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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:UNLP2025-10-22T16:56:56Zoai: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:13292025-10-22 16:56:57.072SEDICI (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 |
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2012 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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http://sedici.unlp.edu.ar/handle/10915/84079 |
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eng |
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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) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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