Heavy Hadronic Molecules Coupled with Multiquark States

We investigate the hidden-charm pentaquarks as a Λ<sub>c</sub>͞D⁽*⁾ – Σ<sub>c</sub>⁽*⁾͞D⁽*⁾ hadronic molecule coupling to a compact five-quark state. The coupling to the compact state leads to an hadron short-range interaction generating an attraction. In addition, the one pi...

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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: 2021
Materias:
Ciencias Exactas
hidden-charm pentaquarks
hadronic molecules
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/133719
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-133719
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
hidden-charm pentaquarks
hadronic molecules
spellingShingle Ciencias Exactas
hidden-charm pentaquarks
hadronic molecules
Yamaguchi, Yasuhiro
García Tecocoatzi, Hugo
Giachino, Alessandro
Hosaka, Atsushi
Santopinto, Elena
Takeuchi, Sachiko
Takizawa, Makoto
Heavy Hadronic Molecules Coupled with Multiquark States
topic_facet Ciencias Exactas
hidden-charm pentaquarks
hadronic molecules
description We investigate the hidden-charm pentaquarks as a Λ<sub>c</sub>͞D⁽*⁾ – Σ<sub>c</sub>⁽*⁾͞D⁽*⁾ hadronic molecule coupling to a compact five-quark state. The coupling to the compact state leads to an hadron short-range interaction generating an attraction. In addition, the one pion exchange potential (OPEP) as a long-range interaction is introduced by the Lagrangians satisfying the chiral and heavy quark spin symmetries. The OPEP has been known as a driving force to bind atomic nuclei, where the tensor term leading the coupled-channel effect generates a strong attraction. The mass degeneracy of heavy hadrons due to the heavy quark spin symmetry enhances the OPEP derived by the πD⁽*⁾͞D⁽*⁾ and πΣ<sub>c</sub>⁽*⁾Σ<sub>c</sub>⁽*⁾ couplings. Introducing those interactions, we consistently explain the masses and widths of the P<sub>c</sub> states reported by LHCb in 2019. The short range interaction has a dominant role to determine the energy-level structures, while the OPEP tensor term does the decay width.
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 Heavy Hadronic Molecules Coupled with Multiquark States
title_short Heavy Hadronic Molecules Coupled with Multiquark States
title_full Heavy Hadronic Molecules Coupled with Multiquark States
title_fullStr Heavy Hadronic Molecules Coupled with Multiquark States
title_full_unstemmed Heavy Hadronic Molecules Coupled with Multiquark States
title_sort heavy hadronic molecules coupled with multiquark states
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/133719
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