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Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV

dc.contributor.authorChatrchyan, Serguei
dc.contributor.authorBrochero Cifuentes, Javier Andrés 
dc.contributor.authorCabrillo Bartolomé, José Iban 
dc.contributor.authorCalderón Tazón, Alicia 
dc.contributor.authorChuang, S. H.
dc.contributor.authorDuarte Campderros, Jorge 
dc.contributor.authorFelcini, Marta
dc.contributor.authorFernández García, Marcos 
dc.contributor.authorGonzález Sánchez, Francisco Javier 
dc.contributor.authorGraziano, Alberto
dc.contributor.authorJordá Lope, Clara
dc.contributor.authorLópez Virto, María Amparo
dc.contributor.authorMarco de Lucas, Jesús 
dc.contributor.authorMarco de Lucas, Rafael José
dc.contributor.authorMartínez Rivero, Celso
dc.contributor.authorMatorras Weinig, Francisco 
dc.contributor.authorMuñoz Sánchez, Francisca Javiela
dc.contributor.authorRodrigo Anoro, Teresa 
dc.contributor.authorRodríguez Marrero, Ana Yaiza
dc.contributor.authorRuiz Jimeno, Alberto 
dc.contributor.authorScodellaro, Luca 
dc.contributor.authorSobrón Sañudo, Mar
dc.contributor.authorVila Álvarez, Iván  
dc.contributor.authorVilar Cortabitarte, Rocío 
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2022-08-25T08:30:10Z
dc.date.available2022-08-25T08:30:10Z
dc.date.issued2013-01
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.urihttp://hdl.handle.net/10902/25792
dc.description.abstractThe results of a search for flavor changing neutral currents in top quark decays t → Zq in events with a topology compatible with the decay chain tt¯ → Wb + Zq → νb + q are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0 fb−1 of proton–proton collisions at a center-of-mass energy of 7 TeV, collected with the CMS detector at the LHC. The observed number of events agrees with the standard model prediction and no evidence for flavor changing neutral currents in top quark decays is found. A t → Zq branching fraction greater than 0.21% is excluded at the 95% confidence level.es_ES
dc.description.sponsorshipWe congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER, SF0690030s09 and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON, RosAtom, RAS and RFBR (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA).es_ES
dc.format.extent21 p.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsAtttribution non commercial no derivates 4.0 International. © 2012 CERN. Published by Elsevier B.V.es_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.sourcePhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2013, 718 (4-5), 252-1272es_ES
dc.subject.otherCMSes_ES
dc.subject.otherPhysicses_ES
dc.subject.otherTopes_ES
dc.subject.otherSearcheses_ES
dc.titleSearch for flavor changing neutral currents in top quark decays in pp collisions at 7 TeVes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttps://doi.org/10.1016/j.physletb.2012.12.045es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1016/j.physletb.2012.12.045
dc.type.versionpublishedVersiones_ES


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Atttribution non commercial no derivates 4.0 International. © 2012 CERN. Published by Elsevier B.V.Excepto si se señala otra cosa, la licencia del ítem se describe como Atttribution non commercial no derivates 4.0 International. © 2012 CERN. Published by Elsevier B.V.