Search for Top-Quark Partners with Charge 5/3 in the Same-Sign Dilepton Final State

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URI: http://hdl.handle.net/10902/13837
ISSN: 0031-9007
ISSN: 1079-7114
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Autoría
Chatrchyan, Serguei; Brochero Cifuentes, Javier AndrésAutoridad Unican; Cabrillo Bartolomé, José IbanAutoridad Unican; Calderón Tazón, AliciaAutoridad Unican; Chuang, S. H.; Duarte Campderros, JorgeAutoridad Unican; Fernández García, MarcosAutoridad Unican; Gómez Gramuglio, GervasioAutoridad Unican; González Sánchez, Francisco JavierAutoridad Unican; Graziano, Alberto; López Virto, María Amparo; Marco de Lucas, JesúsAutoridad Unican; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, FranciscoAutoridad Unican; Muñoz Sánchez, Francisca Javiela; Piedra Gómez, JonatanAutoridad Unican; Rodrigo Anoro, TeresaAutoridad Unican; Rodríguez Marrero, Ana Yaiza; [et al.]
Fecha
2014-04
Derechos
Atribución 3.0 España © CERN, for the CMS Collaboration
Publicado en
Phys. Rev. Lett. Vol. 112, Num. 17, Pag. 171801 (2014)
Editorial
American Physical Society
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Resumen/Abstract
A search for the production of heavy partners of the top quark with charge 5/3 is performed in events with a pair of same-sign leptons. The data sample corresponds to an integrated luminosity of 19.5 fb-1 and was collected at √s = 8 TeV by the CMS experiment. No significant excess is observed in the data above the expected background, and the existence of top-quark partners with masses below 800 GeV is excluded at a 95% confidence level, assuming they decay exclusively to tW. This is the first limit on these particles from the LHC, and it is significantly more restrictive than previous limits.
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Atribución 3.0 España © CERN, for the CMS CollaborationExcepto si se señala otra cosa, la licencia del ítem se describe como Atribución 3.0 España © CERN, for the CMS Collaboration