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

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 t...

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Autores principales: Scarpettini, A., Gómez Dumm, Daniel Alberto, Scoccola, Norberto Nerio
Formato: Articulo
Lenguaje:Inglés
Publicado: 2004
Materias:
Ciencias Exactas
Física
light pseudoscalar mesons
chiral quark model
nonlocal separable interactions
meson masses
decay constants
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/126360
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-126360
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
light pseudoscalar mesons
chiral quark model
nonlocal separable interactions
meson masses
decay constants
spellingShingle Ciencias Exactas
Física
light pseudoscalar mesons
chiral quark model
nonlocal separable interactions
meson masses
decay constants
Scarpettini, A.
Gómez Dumm, Daniel Alberto
Scoccola, Norberto Nerio
Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model
topic_facet Ciencias Exactas
Física
light pseudoscalar mesons
chiral quark model
nonlocal separable interactions
meson masses
decay constants
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.
format Articulo
Articulo
author Scarpettini, A.
Gómez Dumm, Daniel Alberto
Scoccola, Norberto Nerio
author_facet Scarpettini, A.
Gómez Dumm, Daniel Alberto
Scoccola, Norberto Nerio
author_sort Scarpettini, A.
title Light pseudoscalar mesons in a nonlocal SU(3) chiral quark model
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
publishDate 2004
url http://sedici.unlp.edu.ar/handle/10915/126360
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AT gomezdummdanielalberto lightpseudoscalarmesonsinanonlocalsu3chiralquarkmodel
AT scoccolanorbertonerio lightpseudoscalarmesonsinanonlocalsu3chiralquarkmodel
bdutipo_str Repositorios
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