Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory

By using unitarized two-loop chiral perturbation theory partial waves to describe pion-pion scattering we find that the dominant component of the lightest scalar meson does not follow the q q̅ dependence on the number of colors that, in contrast, is obeyed by the lightest vectors. The method suggest...

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Detalles Bibliográficos
Autores: Peláez Sagredo, José Ramón, Ríos, R.
Tipo de recurso: artículo
Fecha de publicación:2006
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/51723
Acceso en línea:https://hdl.handle.net/20.500.14352/51723
Access Level:acceso abierto
Palabra clave:51-73
π π-scattering
Multi-quark hadrons
Low-energy
Form-factors
Phase-shift
Sigma
Lagrangians
Amplitude
Light
Resonances
Física-Modelos matemáticos
Física matemática
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spelling Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theoryPeláez Sagredo, José RamónRíos, R.51-73π π-scatteringMulti-quark hadronsLow-energyForm-factorsPhase-shiftSigmaLagrangiansAmplitudeLightResonancesFísica-Modelos matemáticosFísica matemáticaBy using unitarized two-loop chiral perturbation theory partial waves to describe pion-pion scattering we find that the dominant component of the lightest scalar meson does not follow the q q̅ dependence on the number of colors that, in contrast, is obeyed by the lightest vectors. The method suggests that a subdominant q q̅ component of the f_0(600) possibly originates around 1 GeV.American Physical SocietyUniversidad Complutense de Madrid20062006-12-1520062006-12-15journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/51723reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/517232026-06-02T12:44:21Z
dc.title.none.fl_str_mv Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory
title Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory
spellingShingle Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory
Peláez Sagredo, José Ramón
51-73
π π-scattering
Multi-quark hadrons
Low-energy
Form-factors
Phase-shift
Sigma
Lagrangians
Amplitude
Light
Resonances
Física-Modelos matemáticos
Física matemática
title_short Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory
title_full Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory
title_fullStr Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory
title_full_unstemmed Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory
title_sort Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory
dc.creator.none.fl_str_mv Peláez Sagredo, José Ramón
Ríos, R.
author Peláez Sagredo, José Ramón
author_facet Peláez Sagredo, José Ramón
Ríos, R.
author_role author
author2 Ríos, R.
author2_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 51-73
π π-scattering
Multi-quark hadrons
Low-energy
Form-factors
Phase-shift
Sigma
Lagrangians
Amplitude
Light
Resonances
Física-Modelos matemáticos
Física matemática
topic 51-73
π π-scattering
Multi-quark hadrons
Low-energy
Form-factors
Phase-shift
Sigma
Lagrangians
Amplitude
Light
Resonances
Física-Modelos matemáticos
Física matemática
description By using unitarized two-loop chiral perturbation theory partial waves to describe pion-pion scattering we find that the dominant component of the lightest scalar meson does not follow the q q̅ dependence on the number of colors that, in contrast, is obeyed by the lightest vectors. The method suggests that a subdominant q q̅ component of the f_0(600) possibly originates around 1 GeV.
publishDate 2006
dc.date.none.fl_str_mv 2006
2006-12-15
2006
2006-12-15
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/51723
url https://hdl.handle.net/20.500.14352/51723
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869422428833185792
score 15,300719

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