Search for same-sign top-quark production and fourth-generation down-type quarks in pp collisions at √s = 7 TeV with the ATLAS detector

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dc.contributor.author The ATLAS collaboration
dc.contributor.author Aad, G.
dc.contributor.author Arnal, V.
dc.contributor.author Barreiro, Fernando
dc.contributor.author Cantero, J.
dc.contributor.author de la Torre, H.
dc.contributor.author del Peso, J.
dc.contributor.author Glasman, C.
dc.contributor.author Labarga, Luis
dc.contributor.author Lagouri, T.
dc.contributor.author Llorente Merino, J.
dc.contributor.author March, Luis
dc.contributor.author Nebot, Eduardo
dc.contributor.author Terron, J.
dc.contributor.other UAM. Departamento de Física Teórica es_ES
dc.date.accessioned 2015-02-06T14:44:51Z
dc.date.available 2015-02-06T14:44:51Z
dc.date.issued 2012-04-13
dc.identifier.citation Journal of High Energy Physics 2012.4 (2012): 069 es_ES
dc.identifier.issn 1126-6708 (print) es_ES
dc.identifier.issn 1029-8479 (online) es_ES
dc.identifier.uri http://hdl.handle.net/10486/663648
dc.description Journal of High Energy Physics 2012.4 (2012): 069 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA) es_ES
dc.description Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM es_ES
dc.description.abstract A search is presented for same-sign top-quark production and down-type heavy quarks of charge -1/3 in events with two isolated leptons (e or μ) that have the same electric charge, at least two jets and large missing transverse momentum. The data are selected from pp collisions at ps = 7 TeV recorded by the ATLAS detector and correspond to an integrated luminosity of 1.04 fb-1. The observed data are consistent with expectations from Standard Model processes. Upper limits are set at 95% confidence level on the cross section of new sources of same-sign top-quark pair production of 1.4-2.0 pb depending on the assumed mediator mass. Upper limits are also set on the pair-production cross-section for new heavy down-type quarks; a lower limit of 450 GeV is set at 95% confidence level on the mass of heavy down-type quarks under the assumption that they decay 100% of the time to Wt es_ES
dc.format.extent 40 pag. es_ES
dc.format.mimetype application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Springer Verlag es_ES
dc.publisher SISSA 2012 es_ES
dc.relation.ispartof Journal of High Energy Physics es_ES
dc.rights © SISSA 2012 es_ES
dc.subject.other Hadron-hadron scattering es_ES
dc.title Search for same-sign top-quark production and fourth-generation down-type quarks in pp collisions at √s = 7 TeV with the ATLAS detector es_ES
dc.type article es_ES
dc.subject.eciencia Física es_ES
dc.relation.publisherversion http://dx.doi.org/10.1007/JHEP04(2012)069 es_ES
dc.identifier.doi 10.1007/JHEP04(2012)069 es_ES
dc.identifier.publicationfirstpage 069 es_ES
dc.identifier.publicationissue 4 es_ES
dc.identifier.publicationlastpage 069 es_ES
dc.identifier.publicationvolume 2012 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.rights.accessRights openAccess es_ES
dc.authorUAM Lagouri , Theodota (263922)
dc.authorUAM Labarga Echeverría, Luis Alfonso (259926)
dc.authorUAM March Ruiz, Luis (264217)
dc.authorUAM Nebot Del Busto, Eduardo (264001)
dc.authorUAM Barreiro Alonso, Fernando (259561)


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