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$P_c$ pentaquarks with chiral tensor and quark dynamics
We investigate the hidden-charm pentaquarks as superpositions of ΛcD¯(*) and Σc(*)D¯(*) (isospin I=1/2) meson-baryon channels coupled to a uudcc¯ compact core by employing an interaction satisfying the heavy quark and chiral symmetries. Our model can consistently explain the masses and decay widths...
| Autores principales: | , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.101.091502 http://cds.cern.ch/record/2684150 |
| _version_ | 1780963311244804096 |
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| 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 |
| collection | CERN |
| description | We investigate the hidden-charm pentaquarks as superpositions of ΛcD¯(*) and Σc(*)D¯(*) (isospin I=1/2) meson-baryon channels coupled to a uudcc¯ compact core by employing an interaction satisfying the heavy quark and chiral symmetries. Our model can consistently explain the masses and decay widths of Pc+(4312), Pc+(4440) and Pc+(4457) with the dominant components of ΣcD¯ and ΣcD¯* with spin-parity assignments JP=1/2-, 3/2- and 1/2-, respectively. We analyze basic properties of the Pc’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. |
| id | cern-2684150 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2019 |
| record_format | invenio |
| spelling | cern-26841502023-04-20T02:18:54Zdoi:10.1103/PhysRevD.101.091502http://cds.cern.ch/record/2684150engYamaguchi, YasuhiroGarcía-Tecocoatzi, HugoGiachino, AlessandroHosaka, AtsushiSantopinto, ElenaTakeuchi, SachikoTakizawa, Makoto$P_c$ pentaquarks with chiral tensor and quark dynamicshep-phParticle Physics - PhenomenologyWe investigate the hidden-charm pentaquarks as superpositions of ΛcD¯(*) and Σc(*)D¯(*) (isospin I=1/2) meson-baryon channels coupled to a uudcc¯ compact core by employing an interaction satisfying the heavy quark and chiral symmetries. Our model can consistently explain the masses and decay widths of Pc+(4312), Pc+(4440) and Pc+(4457) with the dominant components of ΣcD¯ and ΣcD¯* with spin-parity assignments JP=1/2-, 3/2- and 1/2-, respectively. We analyze basic properties of the Pc’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.We investigate the hidden-charm pentaquarks as superpositions of $\Lambda_c \bar{D}^{(*)}$ and $\Sigma_c^{(*)} \bar{D}^{(*)}$ (isospin $I = 1/2$) meson-baryon channels coupled to a $uudc\bar{c}$ compact core by employing an interaction satisfying the heavy quark and chiral symmetries. Our model can consistently explain the masses and decay widths of $P_c^+(4312)$, $P_c^+(4440)$ and $P_c^+(4457)$ with the dominant components of $\Sigma_c \bar D$ and $\Sigma_c \bar D^\ast$ with spin parity assignments $J^P = 1/2^{-}, 3/2^{-}$ and $1/2^{-}$, respectively. We analyze basic properties of the $P_c$'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.arXiv:1907.04684oai:cds.cern.ch:26841502019-07-10 |
| spellingShingle | hep-ph Particle Physics - Phenomenology Yamaguchi, Yasuhiro García-Tecocoatzi, Hugo Giachino, Alessandro Hosaka, Atsushi Santopinto, Elena Takeuchi, Sachiko Takizawa, Makoto $P_c$ pentaquarks with chiral tensor and quark dynamics |
| title | $P_c$ pentaquarks with chiral tensor and quark dynamics |
| title_full | $P_c$ pentaquarks with chiral tensor and quark dynamics |
| title_fullStr | $P_c$ pentaquarks with chiral tensor and quark dynamics |
| title_full_unstemmed | $P_c$ pentaquarks with chiral tensor and quark dynamics |
| title_short | $P_c$ pentaquarks with chiral tensor and quark dynamics |
| title_sort | $p_c$ pentaquarks with chiral tensor and quark dynamics |
| topic | hep-ph Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1103/PhysRevD.101.091502 http://cds.cern.ch/record/2684150 |
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