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Search for Strange-Pentaquark Production in e+e− Annihilation at √s=10.58 GeVc

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dc.contributor.authorGraugés Pous, Eugeni
dc.contributor.authorBABAR Collaboration
dc.date.accessioned2019-09-20T11:22:50Z
dc.date.available2019-09-20T11:22:50Z
dc.date.issued2005-07-21
dc.date.updated2019-09-20T11:22:50Z
dc.description.abstractWe search for strange-pentaquark states that have been previously reported by other experiments the Θ ( 1540 ) + , Ξ 5 ( 1860 ) −− , and Ξ 5 ( 1860 ) 0 in 123     fb − 1 of data recorded with the BABAR detector at the PEP-II e + e − storage ring. We find no evidence for these states and set 95% confidence level upper limits on the number of Θ ( 1540 ) + and Ξ 5 ( 1860 ) −− pentaquarks produced per e + e − annihilation into q ¯ q and per Υ ( 4 S ) decay. For q ¯ q events the Θ ( 1540 ) + [ Ξ 5 ( 1860 ) −− ] limit is about 8 [4] times lower than the rates measured for ordinary baryons of similar mass.
dc.format.extent7 p.
dc.format.mimetypeapplication/pdf
dc.identifier.idgrec539087
dc.identifier.issn0031-9007
dc.identifier.urihttps://hdl.handle.net/2445/140643
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.95.042002
dc.relation.ispartofPhysical Review Letters, 2005, vol. 95, num. 4, p. 042002
dc.relation.urihttps://doi.org/10.1103/PhysRevLett.95.042002
dc.rights(c) American Physical Society, 2005
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)
dc.subject.classificationFísica de partícules
dc.subject.classificationExperiments
dc.subject.otherParticle physics
dc.subject.otherExperiments
dc.titleSearch for Strange-Pentaquark Production in e+e− Annihilation at √s=10.58 GeVc
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion

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