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dc.contributor.authorBrochero Cifuentes, J. A.-
dc.contributor.authorCabrillo, I. J.-
dc.contributor.authorCalderon, Alicia-
dc.contributor.authorChuang, S. H.-
dc.contributor.authorDuarte Campderros, J.-
dc.contributor.authorFelcini, Marta-
dc.contributor.authorFernández, M.-
dc.contributor.authorGómez, G.-
dc.contributor.authorGonzález Sánchez, J.-
dc.contributor.authorJorda, C.-
dc.contributor.authorLobelle Pardo, P.-
dc.contributor.authorLópez Virto, A.-
dc.contributor.authorMarco, Jesús-
dc.contributor.authorMarco, Rafael-
dc.contributor.authorMartínez-Rivero, Celso-
dc.contributor.authorMatorras, Francisco-
dc.contributor.authorMuñoz Sánchez, F. J.-
dc.contributor.authorRodrigo, Teresa-
dc.contributor.authorRodríguez Marrero, Ana Y.-
dc.contributor.authorRuiz Jimeno, Alberto-
dc.contributor.authorScodellaro, Luca-
dc.contributor.authorSobron Sañudo, M.-
dc.contributor.authorVila, Iván-
dc.contributor.authorVilar, Rocío-
dc.contributor.authorCMS Collaboration-
dc.date.accessioned2012-07-12T09:17:33Z-
dc.date.available2012-07-12T09:17:33Z-
dc.date.issued2012-
dc.identifier.citationJournal of High Energy Physics: 29 (2012)es_ES
dc.identifier.urihttp://hdl.handle.net/10261/53199-
dc.descriptionOpen Access: This article is distributed under the terms of the Creative Commons Attribution License.-- Chatrchyan, S. et al.es_ES
dc.description.abstractA search is presented for a massive particle, generically referred to as a Z', decaying into a t t-bar pair. The search focuses on Z' resonances that are sufficiently massive to produce highly Lorentz-boosted top quarks, which yield collimated decay products that are partially or fully merged into single jets. The analysis uses new methods to analyze jet substructure, providing suppression of the non-top multijet backgrounds. The analysis is based on a data sample of proton-proton collisions at a center-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 5 inverse femtobarns. Upper limits in the range of 1 pb are set on the product of the production cross section and branching fraction for a topcolor Z' modeled for several widths, as well as for a Randall--Sundrum Kaluza--Klein gluon. In addition, any enhancement to t t-bar production for invariant masses above 1 TeV in the standard model is constrained.es_ES
dc.description.sponsorshipAcknowledge 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 (Republic of 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). Individuals have received support from the Marie-Curie programme and the European Research Council (European Union); the Leventis Foundation; the A.P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Council of Science and Industrial Research, India; and the HOMING PLUS programme of Foundation for Polish Science, cofinanced from European Union, Regional Development Fund.-
dc.language.isoenges_ES
dc.publisherSpringeres_ES
dc.relation.isversionofPublisher's version-
dc.rightsopenAccesses_ES
dc.titleSearch for anomalous tt production in the highly-boosted all-hadronic final statees_ES
dc.typeartículoes_ES
dc.identifier.doi10.1007/JHEP09(2012)029-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1007/JHEP09(2012)029es_ES
dc.identifier.e-issn1029-8479-
Appears in Collections:(IFCA) Artículos
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