P<sub>c</sub> pentaquarks with chiral tensor and quark dynamics

We investigate the hidden-charm pentaquarks as superpositions of Λ<sub>c</sub>͞D⁽*⁾ ðÞ and Σ<sub>c</sub>⁽*⁾͞D⁽*⁾(isospin I = 1/2) meson-baryon channels coupled to a uudc͞c compact core by employing an interaction satisfying the heavy quark and chiral symmetries. Our model can...

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Detalles Bibliográficos
Autores principales: Yamaguchi, Yasuhiro, García Tecocoatzi, Hugo, Giachino, Alessandro, Hosaka, Atsushi, Santopinto, Elena, Takeuchi, Sachiko, Takizawa, Makoto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Ciencias Exactas
Física
Heavy quark effective theory
Strong interaction
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/146428
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-146428
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
Heavy quark effective theory
Strong interaction
spellingShingle Ciencias Exactas
Física
Heavy quark effective theory
Strong interaction
Yamaguchi, Yasuhiro
García Tecocoatzi, Hugo
Giachino, Alessandro
Hosaka, Atsushi
Santopinto, Elena
Takeuchi, Sachiko
Takizawa, Makoto
P<sub>c</sub> pentaquarks with chiral tensor and quark dynamics
topic_facet Ciencias Exactas
Física
Heavy quark effective theory
Strong interaction
description We investigate the hidden-charm pentaquarks as superpositions of Λ<sub>c</sub>͞D⁽*⁾ ðÞ and Σ<sub>c</sub>⁽*⁾͞D⁽*⁾(isospin I = 1/2) meson-baryon channels coupled to a uudc͞c compact core by employing an interaction satisfying the heavy quark and chiral symmetries. Our model can consistently explain the masses and decay widths of P<sub>c</sub>⁺(4312), P<sub>c</sub>⁺(4440) and P<sub>c</sub>⁺(4457) with the dominant components of Σ<sub>c</sub>͞D and Σ<sub>c</sub>͞D* with spin-parity assignments Jᴾ =1/2⁻, 3/2⁻ and 1/2⁻, respectively. We analyze basic properties of the P<sub>c</sub>’s such as masses and decay widths, and find that the mass ordering is dominantly determined by the quark dynamics while the decay widths by the tensor force of the one-pion exchange.
format Articulo
Articulo
author Yamaguchi, Yasuhiro
García Tecocoatzi, Hugo
Giachino, Alessandro
Hosaka, Atsushi
Santopinto, Elena
Takeuchi, Sachiko
Takizawa, Makoto
author_facet Yamaguchi, Yasuhiro
García Tecocoatzi, Hugo
Giachino, Alessandro
Hosaka, Atsushi
Santopinto, Elena
Takeuchi, Sachiko
Takizawa, Makoto
author_sort Yamaguchi, Yasuhiro
title P<sub>c</sub> pentaquarks with chiral tensor and quark dynamics
title_short P<sub>c</sub> pentaquarks with chiral tensor and quark dynamics
title_full P<sub>c</sub> pentaquarks with chiral tensor and quark dynamics
title_fullStr P<sub>c</sub> pentaquarks with chiral tensor and quark dynamics
title_full_unstemmed P<sub>c</sub> pentaquarks with chiral tensor and quark dynamics
title_sort p<sub>c</sub> pentaquarks with chiral tensor and quark dynamics
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/146428
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AT giachinoalessandro psubcsubpentaquarkswithchiraltensorandquarkdynamics
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AT takeuchisachiko psubcsubpentaquarkswithchiraltensorandquarkdynamics
AT takizawamakoto psubcsubpentaquarkswithchiraltensorandquarkdynamics
bdutipo_str Repositorios
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