Hints for the existence of hexaquark states in the baryon-antibaryon sector

The discovery of some baryon-antibaryon resonances has led us to consider 3q~3\bar{q} systems as possible candidates. We predict their spectrum in the framework of a constituent model, where the chromo-magnetic interaction plays the main role. The relevant parameters are fixed by the present knowled...

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Detalles Bibliográficos
Autores principales: Abud, Mario, Buccella, Franco, Tramontano, Francesco
Lenguaje:eng
Publicado: 2009
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.81.074018
http://cds.cern.ch/record/1230324
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author Abud, Mario
Buccella, Franco
Tramontano, Francesco
author_facet Abud, Mario
Buccella, Franco
Tramontano, Francesco
author_sort Abud, Mario
collection CERN
description The discovery of some baryon-antibaryon resonances has led us to consider 3q~3\bar{q} systems as possible candidates. We predict their spectrum in the framework of a constituent model, where the chromo-magnetic interaction plays the main role. The relevant parameters are fixed by the present knowledge on tetraquarks. The emerging scenario complies well with experiment. Besides the description of the baryon-antibaryon resonances, we find evidence for new tetraquark states, namely the a0(Y) in the hidden strangeness sector and, in the cs\bar{c}\bar{s} sector, the Y(4140) and the X(4350). A detailed account of the spectra and the decay channels is provided for future comparisons with data.
id cern-1230324
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-12303242019-09-30T06:29:59Zdoi:10.1103/PhysRevD.81.074018http://cds.cern.ch/record/1230324engAbud, MarioBuccella, FrancoTramontano, FrancescoHints for the existence of hexaquark states in the baryon-antibaryon sectorParticle Physics - PhenomenologyThe discovery of some baryon-antibaryon resonances has led us to consider 3q~3\bar{q} systems as possible candidates. We predict their spectrum in the framework of a constituent model, where the chromo-magnetic interaction plays the main role. The relevant parameters are fixed by the present knowledge on tetraquarks. The emerging scenario complies well with experiment. Besides the description of the baryon-antibaryon resonances, we find evidence for new tetraquark states, namely the a0(Y) in the hidden strangeness sector and, in the cs\bar{c}\bar{s} sector, the Y(4140) and the X(4350). A detailed account of the spectra and the decay channels is provided for future comparisons with data.The discovery of some baryon-antibaryon resonances has led us to consider 3q~3\bar{q} systems as possible candidates. We predict their spectrum in the framework of a constituent model, where the chromo-magnetic interaction plays the main role. The relevant parameters are fixed by the present knowledge on tetraquarks. The emerging scenario complies well with experiment. Besides the description of the baryon-antibaryon resonances, we find evidence for new tetraquark states, namely the a0(Y) in the hidden strangeness sector and, in the cs\bar{c}\bar{s} sector, the Y(4140) and the X(4350). A detailed account of the spectra and the decay channels is provided for future comparisons with data.arXiv:0912.4299DSF-NA-15-2009CERN-PH-TH-2009-246DSF-NA 15-2009CERN-PH-TH-2009-246oai:cds.cern.ch:12303242009-12-23
spellingShingle Particle Physics - Phenomenology
Abud, Mario
Buccella, Franco
Tramontano, Francesco
Hints for the existence of hexaquark states in the baryon-antibaryon sector
title Hints for the existence of hexaquark states in the baryon-antibaryon sector
title_full Hints for the existence of hexaquark states in the baryon-antibaryon sector
title_fullStr Hints for the existence of hexaquark states in the baryon-antibaryon sector
title_full_unstemmed Hints for the existence of hexaquark states in the baryon-antibaryon sector
title_short Hints for the existence of hexaquark states in the baryon-antibaryon sector
title_sort hints for the existence of hexaquark states in the baryon-antibaryon sector
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.81.074018
http://cds.cern.ch/record/1230324
work_keys_str_mv AT abudmario hintsfortheexistenceofhexaquarkstatesinthebaryonantibaryonsector
AT buccellafranco hintsfortheexistenceofhexaquarkstatesinthebaryonantibaryonsector
AT tramontanofrancesco hintsfortheexistenceofhexaquarkstatesinthebaryonantibaryonsector

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