Strong decays of the latest LHCb pentaquark candidates in hadronic molecule pictures

We investigate the observed pentaquark candidates Pc(4312), Pc(4440), and Pc(4457) from the latest LHCb measurement, as well as four possible spin partners in the D¯(*)Σc* system predicted from the heavy quark spin symmetry with the hadronic molecule scenarios. Similar to the previous calculation on...

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Detalles Bibliográficos
Autores principales: Lin, Yong-Hui, Zou, Bing-Song
Lenguaje:eng
Publicado: 2019
Materias:
nucl-th
Nuclear Physics - Theory
hep-ph
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.100.056005
http://cds.cern.ch/record/2688127
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author Lin, Yong-Hui
Zou, Bing-Song
author_facet Lin, Yong-Hui
Zou, Bing-Song
author_sort Lin, Yong-Hui
collection CERN
description We investigate the observed pentaquark candidates Pc(4312), Pc(4440), and Pc(4457) from the latest LHCb measurement, as well as four possible spin partners in the D¯(*)Σc* system predicted from the heavy quark spin symmetry with the hadronic molecule scenarios. Similar to the previous calculation on Pc(4380) and Pc(4450), the partial widths of all the allowed decay channels for these Pc states are estimated with the effective Lagrangian method. The cutoff dependence of our numerical results is also presented. Comparing with the experimental widths, our results show that Pc(4312), Pc(4440), and Pc(4457) can be described well with the spin-parity-1/2--D¯Σc, 1/2--D¯*Σc, and 3/2--D¯*Σc molecule pictures, respectively.
id cern-2688127
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
record_format invenio
spelling cern-26881272021-02-27T04:35:54Zdoi:10.1103/PhysRevD.100.056005http://cds.cern.ch/record/2688127engLin, Yong-HuiZou, Bing-SongStrong decays of the latest LHCb pentaquark candidates in hadronic molecule picturesnucl-thNuclear Physics - Theoryhep-phParticle Physics - PhenomenologyWe investigate the observed pentaquark candidates Pc(4312), Pc(4440), and Pc(4457) from the latest LHCb measurement, as well as four possible spin partners in the D¯(*)Σc* system predicted from the heavy quark spin symmetry with the hadronic molecule scenarios. Similar to the previous calculation on Pc(4380) and Pc(4450), the partial widths of all the allowed decay channels for these Pc states are estimated with the effective Lagrangian method. The cutoff dependence of our numerical results is also presented. Comparing with the experimental widths, our results show that Pc(4312), Pc(4440), and Pc(4457) can be described well with the spin-parity-1/2--D¯Σc, 1/2--D¯*Σc, and 3/2--D¯*Σc molecule pictures, respectively.We investigate the observed pentaquark candidates $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$ from the latest LHCb measurement, as well as four possible spin partners in the $\bar{D}^{(*)}\Sigma_c^*$ system predicted from the heavy quark spin symmetry with the hadronic molecule scenarios. Similar to the previous calculation on $P_c(4380)$ and $P_c(4450)$, the partial widths of all the allowed decay channels for these $P_c$ states are estimated with the effective Lagrangian method. The cutoff dependence of our numerical results are also presented. Comparing with the experimental widths, our results show that $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$ can be described well with the spin-parity-$1/2^-$-$\bar{D}\Sigma_c$, $1/2^-$-$\bar{D}^*\Sigma_c$ and $3/2^-$-$\bar{D}^*\Sigma_c$ molecule pictures, respectively.arXiv:1908.05309oai:cds.cern.ch:26881272019-08-14
spellingShingle nucl-th
Nuclear Physics - Theory
hep-ph
Particle Physics - Phenomenology
Lin, Yong-Hui
Zou, Bing-Song
Strong decays of the latest LHCb pentaquark candidates in hadronic molecule pictures
title Strong decays of the latest LHCb pentaquark candidates in hadronic molecule pictures
title_full Strong decays of the latest LHCb pentaquark candidates in hadronic molecule pictures
title_fullStr Strong decays of the latest LHCb pentaquark candidates in hadronic molecule pictures
title_full_unstemmed Strong decays of the latest LHCb pentaquark candidates in hadronic molecule pictures
title_short Strong decays of the latest LHCb pentaquark candidates in hadronic molecule pictures
title_sort strong decays of the latest lhcb pentaquark candidates in hadronic molecule pictures
topic nucl-th
Nuclear Physics - Theory
hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.100.056005
http://cds.cern.ch/record/2688127
work_keys_str_mv AT linyonghui strongdecaysofthelatestlhcbpentaquarkcandidatesinhadronicmoleculepictures
AT zoubingsong strongdecaysofthelatestlhcbpentaquarkcandidatesinhadronicmoleculepictures

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