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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/137741
Ver los metadatos del registro completo
id |
SEDICI_6124f511f3568ce46656703499b3c09b |
---|---|
oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/137741 |
network_acronym_str |
SEDICI |
repository_id_str |
1329 |
network_name_str |
SEDICI (UNLP) |
spelling |
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:UNLP2025-09-29T11:32:26Zoai: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:13292025-09-29 11:32:27.236SEDICI (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 |
dc.date.none.fl_str_mv |
2019-08-01 |
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/10915/137741 |
url |
http://sedici.unlp.edu.ar/handle/10915/137741 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
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 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
reponame_str |
SEDICI (UNLP) |
collection |
SEDICI (UNLP) |
instname_str |
Universidad Nacional de La Plata |
instacron_str |
UNLP |
institution |
UNLP |
repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
_version_ |
1844616203978407936 |
score |
13.070432 |