Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model

Autores
Scarpettini, A.; Gómez Dumm, Daniel Alberto; Scoccola, Norberto Nerio
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the properties of the light pseudoscalar mesons in a three-flavor chiral quark model with nonlocal separable interactions. We concentrate on the evaluation of meson masses and decay constants, considering both the cases of Gaussian and Lorentzian nonlocal regulators. The results are found to be in quite good agreement with the empirical values, in particular in the case of the ratio fK / fπ and the anomalous decay π⁰ → γγ. In addition, the model leads to a reasonable description of the observed phenomenology in the η-η' sector, even though it implies the existence of two significantly different state mixing angles.
Facultad de Ciencias Exactas
Instituto de Física La Plata
Materia
Ciencias Exactas
Física
light pseudoscalar mesons
chiral quark model
nonlocal separable interactions
meson masses
decay constants
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:10915/126360
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/126360
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Light pseudoscalar mesons in a nonlocal SU(3) chiral quark modelScarpettini, A.Gómez Dumm, Daniel AlbertoScoccola, Norberto NerioCiencias ExactasFísicalight pseudoscalar mesonschiral quark modelnonlocal separable interactionsmeson massesdecay constantsWe study the properties of the light pseudoscalar mesons in a three-flavor chiral quark model with nonlocal separable interactions. We concentrate on the evaluation of meson masses and decay constants, considering both the cases of Gaussian and Lorentzian nonlocal regulators. The results are found to be in quite good agreement with the empirical values, in particular in the case of the ratio f<sub>K</sub> / f<sub>π</sub> and the anomalous decay π⁰ → γγ. In addition, the model leads to a reasonable description of the observed phenomenology in the η-η' sector, even though it implies the existence of two significantly different state mixing angles.Facultad de Ciencias ExactasInstituto de Física La Plata2004-06info: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/10915/126360enginfo:eu-repo/semantics/altIdentifier/issn/1550-7998info:eu-repo/semantics/altIdentifier/issn/1550-2368info:eu-repo/semantics/altIdentifier/arxiv/hep-ph/0311030info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.69.114018info: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:UNLP2025-10-29T15:35:18Zoai:sedici.unlp.edu.ar:10915/126360Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-29 15:35:18.84SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model
title Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model
spellingShingle Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model
Scarpettini, A.
Ciencias Exactas
Física
light pseudoscalar mesons
chiral quark model
nonlocal separable interactions
meson masses
decay constants
title_short Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model
title_full Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model
title_fullStr Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model
title_full_unstemmed Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model
title_sort Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model
dc.creator.none.fl_str_mv Scarpettini, A.
Gómez Dumm, Daniel Alberto
Scoccola, Norberto Nerio
author Scarpettini, A.
author_facet Scarpettini, A.
Gómez Dumm, Daniel Alberto
Scoccola, Norberto Nerio
author_role author
author2 Gómez Dumm, Daniel Alberto
Scoccola, Norberto Nerio
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
light pseudoscalar mesons
chiral quark model
nonlocal separable interactions
meson masses
decay constants
topic Ciencias Exactas
Física
light pseudoscalar mesons
chiral quark model
nonlocal separable interactions
meson masses
decay constants
dc.description.none.fl_txt_mv We study the properties of the light pseudoscalar mesons in a three-flavor chiral quark model with nonlocal separable interactions. We concentrate on the evaluation of meson masses and decay constants, considering both the cases of Gaussian and Lorentzian nonlocal regulators. The results are found to be in quite good agreement with the empirical values, in particular in the case of the ratio f<sub>K</sub> / f<sub>π</sub> and the anomalous decay π⁰ → γγ. In addition, the model leads to a reasonable description of the observed phenomenology in the η-η' sector, even though it implies the existence of two significantly different state mixing angles.
Facultad de Ciencias Exactas
Instituto de Física La Plata
description We study the properties of the light pseudoscalar mesons in a three-flavor chiral quark model with nonlocal separable interactions. We concentrate on the evaluation of meson masses and decay constants, considering both the cases of Gaussian and Lorentzian nonlocal regulators. The results are found to be in quite good agreement with the empirical values, in particular in the case of the ratio f<sub>K</sub> / f<sub>π</sub> and the anomalous decay π⁰ → γγ. In addition, the model leads to a reasonable description of the observed phenomenology in the η-η' sector, even though it implies the existence of two significantly different state mixing angles.
publishDate 2004
dc.date.none.fl_str_mv 2004-06
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/10915/126360
url http://sedici.unlp.edu.ar/handle/10915/126360
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1550-7998
info:eu-repo/semantics/altIdentifier/issn/1550-2368
info:eu-repo/semantics/altIdentifier/arxiv/hep-ph/0311030
info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.69.114018
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
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
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score 13.10058

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