Higher derivative terms in the π Δ N interaction: Some phenomenological consequences
- Autores
- Mariano, Alejandro Edgardo; Badagnani, Daniel Omar; Barbero, César Alberto; Berrueta Martínez, Estefanía
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In this paper, we implement the use of a πN1(1232) vertex interaction containing both first- and second-order derivative terms, as required by renormalization and power-counting considerations. As was previously shown, both interactions present quantization shortcomings but can be used in a pertubative calculation. Our results indicate that the usual π derivative plus the spin-3/2 gauge invariant (derivative also in the 1 field) should be included in amplitude calculations, as also all higher derivative interactions respecting chiral invariance. We show that both interactions make essentially the same resonant contribution to the elastic π+ p cross section, so changing the ratio between both coupling constants amounts to a correction of the background. The elastic π+ p cross section up to 300 MeV changes only mildly when that ratio is changed, but the total π− p scattering, which has poor fit within both interactions separately, can be much improved in the same energy range by tuning the ratio between both coupling constants.
Instituto de Física La Plata - Materia
-
Física
Particles & fields
Nuclear physics - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/137741
Ver los metadatos del registro completo
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Higher derivative terms in the π Δ N interaction: Some phenomenological consequencesMariano, Alejandro EdgardoBadagnani, Daniel OmarBarbero, César AlbertoBerrueta Martínez, EstefaníaFísicaParticles & fieldsNuclear physicsIn this paper, we implement the use of a πN1(1232) vertex interaction containing both first- and second-order derivative terms, as required by renormalization and power-counting considerations. As was previously shown, both interactions present quantization shortcomings but can be used in a pertubative calculation. Our results indicate that the usual π derivative plus the spin-3/2 gauge invariant (derivative also in the 1 field) should be included in amplitude calculations, as also all higher derivative interactions respecting chiral invariance. We show that both interactions make essentially the same resonant contribution to the elastic π+ p cross section, so changing the ratio between both coupling constants amounts to a correction of the background. The elastic π+ p cross section up to 300 MeV changes only mildly when that ratio is changed, but the total π− p scattering, which has poor fit within both interactions separately, can be much improved in the same energy range by tuning the ratio between both coupling constants.Instituto de Física La Plata2019-08-01info: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/10915/137741enginfo:eu-repo/semantics/altIdentifier/issn/2469-9985info:eu-repo/semantics/altIdentifier/issn/2469-9993info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevc.100.024001info:eu-repo/semantics/altIdentifier/arxiv/1711.03820info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:13:21Zoai:sedici.unlp.edu.ar:10915/137741Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:13:22.249SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Higher derivative terms in the π Δ N interaction: Some phenomenological consequences |
| title |
Higher derivative terms in the π Δ N interaction: Some phenomenological consequences |
| spellingShingle |
Higher derivative terms in the π Δ N interaction: Some phenomenological consequences Mariano, Alejandro Edgardo Física Particles & fields Nuclear physics |
| title_short |
Higher derivative terms in the π Δ N interaction: Some phenomenological consequences |
| title_full |
Higher derivative terms in the π Δ N interaction: Some phenomenological consequences |
| title_fullStr |
Higher derivative terms in the π Δ N interaction: Some phenomenological consequences |
| title_full_unstemmed |
Higher derivative terms in the π Δ N interaction: Some phenomenological consequences |
| title_sort |
Higher derivative terms in the π Δ N interaction: Some phenomenological consequences |
| dc.creator.none.fl_str_mv |
Mariano, Alejandro Edgardo Badagnani, Daniel Omar Barbero, César Alberto Berrueta Martínez, Estefanía |
| author |
Mariano, Alejandro Edgardo |
| author_facet |
Mariano, Alejandro Edgardo Badagnani, Daniel Omar Barbero, César Alberto Berrueta Martínez, Estefanía |
| author_role |
author |
| author2 |
Badagnani, Daniel Omar Barbero, César Alberto Berrueta Martínez, Estefanía |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
Física Particles & fields Nuclear physics |
| topic |
Física Particles & fields Nuclear physics |
| dc.description.none.fl_txt_mv |
In this paper, we implement the use of a πN1(1232) vertex interaction containing both first- and second-order derivative terms, as required by renormalization and power-counting considerations. As was previously shown, both interactions present quantization shortcomings but can be used in a pertubative calculation. Our results indicate that the usual π derivative plus the spin-3/2 gauge invariant (derivative also in the 1 field) should be included in amplitude calculations, as also all higher derivative interactions respecting chiral invariance. We show that both interactions make essentially the same resonant contribution to the elastic π+ p cross section, so changing the ratio between both coupling constants amounts to a correction of the background. The elastic π+ p cross section up to 300 MeV changes only mildly when that ratio is changed, but the total π− p scattering, which has poor fit within both interactions separately, can be much improved in the same energy range by tuning the ratio between both coupling constants. Instituto de Física La Plata |
| description |
In this paper, we implement the use of a πN1(1232) vertex interaction containing both first- and second-order derivative terms, as required by renormalization and power-counting considerations. As was previously shown, both interactions present quantization shortcomings but can be used in a pertubative calculation. Our results indicate that the usual π derivative plus the spin-3/2 gauge invariant (derivative also in the 1 field) should be included in amplitude calculations, as also all higher derivative interactions respecting chiral invariance. We show that both interactions make essentially the same resonant contribution to the elastic π+ p cross section, so changing the ratio between both coupling constants amounts to a correction of the background. The elastic π+ p cross section up to 300 MeV changes only mildly when that ratio is changed, but the total π− p scattering, which has poor fit within both interactions separately, can be much improved in the same energy range by tuning the ratio between both coupling constants. |
| publishDate |
2019 |
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2019-08-01 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/2469-9985 info:eu-repo/semantics/altIdentifier/issn/2469-9993 info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevc.100.024001 info:eu-repo/semantics/altIdentifier/arxiv/1711.03820 |
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