Tetraquark candidates in the LHCb's di-$J/\psi$ mass spectrum

In this article, we study the first radial excited states of the scalar, axialvector, vector, and tensor diquark-antidiquark-type tetraquark states with the QCD sum rules and obtain the masses and pole residues; then, we use the Regge trajectories to obtain the masses of the second radial excited st...

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Detalles Bibliográficos
Autor principal: Wang, Zhi-Gang
Lenguaje:eng
Publicado: 2020
Materias:
hep-ph
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1088/1674-1137/abb080
http://cds.cern.ch/record/2759259
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author Wang, Zhi-Gang
author_facet Wang, Zhi-Gang
author_sort Wang, Zhi-Gang
collection CERN
description In this article, we study the first radial excited states of the scalar, axialvector, vector, and tensor diquark-antidiquark-type tetraquark states with the QCD sum rules and obtain the masses and pole residues; then, we use the Regge trajectories to obtain the masses of the second radial excited states. The predicted masses support assigning the broad structure from 6.2 to 6.8 GeV in the di- mass spectrum to be the first radial excited state of the scalar, axialvector, vector, or tensor tetraquark state, as well as assigning the narrow structure at about 6.9 GeV in the di- mass spectrum to be the second radial excited state of the scalar or axialvector tetraquark state.
id cern-2759259
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
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spelling cern-27592592021-03-29T02:10:20Zdoi:10.1088/1674-1137/abb080http://cds.cern.ch/record/2759259engWang, Zhi-GangTetraquark candidates in the LHCb's di-$J/\psi$ mass spectrumhep-phParticle Physics - PhenomenologyIn this article, we study the first radial excited states of the scalar, axialvector, vector, and tensor diquark-antidiquark-type tetraquark states with the QCD sum rules and obtain the masses and pole residues; then, we use the Regge trajectories to obtain the masses of the second radial excited states. The predicted masses support assigning the broad structure from 6.2 to 6.8 GeV in the di- mass spectrum to be the first radial excited state of the scalar, axialvector, vector, or tensor tetraquark state, as well as assigning the narrow structure at about 6.9 GeV in the di- mass spectrum to be the second radial excited state of the scalar or axialvector tetraquark state.In this article, we study the first radial excited states of the scalar, axialvector, vector and tensor diquark-antidiquark type $cc\bar{c}\bar{c}$ tetraquark states with the QCD sum rules and obtain the masses and pole residues, then we use the Regge trajectory to obtain the masses of the second radial excited states. The predicted masses support assigning the broad structure from 6.2 to 6.8 GeV in the di-$J/\psi$ mass spectrum to be the first radial excited state of the scalar, axialvector, vector or tensor $cc\bar{c}\bar{c}$ tetraquark state, and assigning the narrow structure at about 6.9 GeV in the di-$J/\psi$ mass spectrum to be the second radial excited state of the scalar or axialvector $cc\bar{c}\bar{c}$ tetraquark state.arXiv:2006.13028oai:cds.cern.ch:27592592020-06-23
spellingShingle hep-ph
Particle Physics - Phenomenology
Wang, Zhi-Gang
Tetraquark candidates in the LHCb's di-$J/\psi$ mass spectrum
title Tetraquark candidates in the LHCb's di-$J/\psi$ mass spectrum
title_full Tetraquark candidates in the LHCb's di-$J/\psi$ mass spectrum
title_fullStr Tetraquark candidates in the LHCb's di-$J/\psi$ mass spectrum
title_full_unstemmed Tetraquark candidates in the LHCb's di-$J/\psi$ mass spectrum
title_short Tetraquark candidates in the LHCb's di-$J/\psi$ mass spectrum
title_sort tetraquark candidates in the lhcb's di-$j/\psi$ mass spectrum
topic hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1088/1674-1137/abb080
http://cds.cern.ch/record/2759259
work_keys_str_mv AT wangzhigang tetraquarkcandidatesinthelhcbsdijpsimassspectrum

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