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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/8536
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dc.contributor.authorGómez-Ceballos, Guillelmoen_US
dc.contributor.authorCuevas, Javier-
dc.date.accessioned2008-11-13T10:53:37Z-
dc.date.available2008-11-13T10:53:37Z-
dc.date.issued2007-03-29en_US
dc.identifier.citationEuropean Physical Journal C 50: 507-518 (2007)en_US
dc.identifier.issn1434-6044en_US
dc.identifier.urihttp://hdl.handle.net/10261/8536-
dc.description12 pages, 12 figures.-- ISI Article Identifier: 000245853100001.-- El Pdf del artículo es la versión pre-print: http://arxiv.org/pdf/0704.0594.-- DELPHI Collaboration: et al.en_US
dc.description.abstractA search for the pair production of fourth generation b'-quarks was performed using data taken by the DELPHI detector at LEP-II. The analysed data were collected at centre-of-mass energies ranging from 196 to 209 GeV, corresponding to an integrated luminosity of 420 pb(-1). No evidence for a signal was found. Upper limits on BR(b'-> bZ) and BR(b'-> bZ) were obtained for b' masses ranging from 96 to 103 GeV/c^2 stop. These limits, together with the theoretical branching ratios predicted by a sequential four generations model, were used to constrain the value of R_CKM=vertical bar V_cb' / V_tb' V_tb vertical bar, where V_cb', V_tb' and V_tb are elements of the extended CKM matrix.en_US
dc.format.extent2373 bytes-
dc.format.mimetypetext/plain-
dc.language.isoengen_US
dc.publisherSocietà Italiana di Fisicaen_US
dc.publisherSpringer Nature-
dc.rightsopenAccessen_US
dc.subjectPhysics Event Generationen_US
dc.subjectNeutral-current Decaysen_US
dc.subjectCharge -1/3 Quarken_US
dc.subjectMonte-carloen_US
dc.subjectE(+)e(-) Collidersen_US
dc.subjectDelphien_US
dc.subjectEnergyen_US
dc.subjectZ0en_US
dc.subjectAnnihilationen_US
dc.subjectCollisionsen_US
dc.titleSearch for a fourth generation b'-quark at LEP-II at sqrt{s}=196-209 GeVen_US
dc.typeartículoen_US
dc.identifier.doi10.1140/epjc/s10052-007-0273-z-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1140/epjc/s10052-007-0273-zen_US
dc.identifier.e-issn1434-6052-
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.grantfulltextopen-
item.cerifentitytypePublications-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
item.languageiso639-1en-
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