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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/46577
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dc.contributor.authorAaltonen, T.-
dc.contributor.authorÁlvarez González, B.-
dc.contributor.authorCasal, Bruno-
dc.contributor.authorCuevas, Javier-
dc.contributor.authorGómez, Gervasio-
dc.contributor.authorPalencia, Enrique-
dc.contributor.authorRodrigo, Teresa-
dc.contributor.authorRuiz Jimeno, Alberto-
dc.contributor.authorScodellaro, Luca-
dc.contributor.authorVila, Iván-
dc.contributor.authorVilar Cortabitarte, R.-
dc.contributor.authorVizán, J.-
dc.date.accessioned2012-03-05T10:55:55Z-
dc.date.available2012-03-05T10:55:55Z-
dc.date.issued2011-04-
dc.identifier.citationPhysical Review Letters 106(14): 141803 (2011)es_ES
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10261/46577-
dc.description7 páginas, 2 figuras, 2 tablas.-- PACS numbers: 14.65.Jk, 12.60.-i, 13.85.Rm, 14.80.-j.-- CDF Collaboration: et al.es_ES
dc.description.abstractWe report the most sensitive direct search for pair production of fourth-generation bottomlike chiral quarks (b′) each decaying promptly to tW. We search for an excess of events with an electron or muon, at least five jets (one identified as due to a b or c quark), and an imbalance of transverse momentum by using data from pp̅ collisions collected by the CDF II detector at Fermilab with an integrated luminosity of 4.8  fb-1. We observe events consistent with background expectation, calculate upper limits on the b′ pair-production cross section (σbb̅ ′≲30  fb for mb′>375  GeV/c2), and exclude mb′<372  GeV/c2 at 95% confidence level assuming a 100% branching ratio of b′ to tW.es_ES
dc.description.sponsorshipThis work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, United Kingdom; the Institut National de Physique Nucleaire et Physique des Particules/CNRS; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; and the Academy of Finland.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.rightsopenAccesses_ES
dc.titleSearch for Heavy Bottomlike Quarks Decaying to an Electron or Muon and Jets in pp̅ Collisions at √s=1.96  TeVes_ES
dc.typeartículoes_ES
dc.identifier.doi10.1103/PhysRevLett.106.141803-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1103/PhysRevLett.106.141803es_ES
dc.identifier.e-issn1079-7114-
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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