Narrow width pentaquarks

A general study of pentaquarks built with four quarks in a L=1 state and an antiquark in S-wave shows that several of such states are forbidden by a selection rule, which holds in the limit of flavour symmetry, to decay into a baryon and a meson final state. We identify the most promising \bar{10} m...

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Detalles Bibliográficos
Autores principales: Buccella, F., Sorba, P.
Lenguaje:eng
Publicado: 2004
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1142/S0217732304014835
http://cds.cern.ch/record/705473
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author Buccella, F.
Sorba, P.
author_facet Buccella, F.
Sorba, P.
author_sort Buccella, F.
collection CERN
description A general study of pentaquarks built with four quarks in a L=1 state and an antiquark in S-wave shows that several of such states are forbidden by a selection rule, which holds in the limit of flavour symmetry, to decay into a baryon and a meson final state. We identify the most promising \bar{10} multiplet for the classification of the Theta^+ and Xi^{--} particles recently discovered with the prediction of a narrow width for both of them.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
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spelling cern-7054732023-03-14T17:06:41Zdoi:10.1142/S0217732304014835http://cds.cern.ch/record/705473engBuccella, F.Sorba, P.Narrow width pentaquarksParticle Physics - PhenomenologyA general study of pentaquarks built with four quarks in a L=1 state and an antiquark in S-wave shows that several of such states are forbidden by a selection rule, which holds in the limit of flavour symmetry, to decay into a baryon and a meson final state. We identify the most promising \bar{10} multiplet for the classification of the Theta^+ and Xi^{--} particles recently discovered with the prediction of a narrow width for both of them.A general study of pentaquarks built with four quarks in a L=1 state and an antiquark in S-wave shows that several of such states are forbidden by a selection rule, which holds in the limit of flavour symmetry, to decay into a baryon and a meson final state. We identify the most promising \bar{10} multiplet for the classification of the Theta^+ and Xi^{--} particles recently discovered with the prediction of a narrow width for both of them.hep-ph/0401083CERN-TH-2003-316DSF-43-2003LAPTH-1018-03CERN-TH-2003-316DSF-2003-43LAPP-TH-1018oai:cds.cern.ch:7054732004-01-12
spellingShingle Particle Physics - Phenomenology
Buccella, F.
Sorba, P.
Narrow width pentaquarks
title Narrow width pentaquarks
title_full Narrow width pentaquarks
title_fullStr Narrow width pentaquarks
title_full_unstemmed Narrow width pentaquarks
title_short Narrow width pentaquarks
title_sort narrow width pentaquarks
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1142/S0217732304014835
http://cds.cern.ch/record/705473
work_keys_str_mv AT buccellaf narrowwidthpentaquarks
AT sorbap narrowwidthpentaquarks

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