| dc.contributor.author | Aaltonen, Timo Antero | |
| dc.contributor.author | Álvarez González, Bárbara | |
| dc.contributor.author | Casal Laraña, Bruno | |
| dc.contributor.author | Cuevas Maestro, Francisco Javier | |
| dc.contributor.author | Gómez Gramuglio, Gervasio | |
| dc.contributor.author | Rodrigo Anoro, Teresa | |
| dc.contributor.author | Ruiz Jimeno, Alberto | |
| dc.contributor.author | Scodellaro, Luca | |
| dc.contributor.author | Vila Álvarez, Iván | |
| dc.contributor.author | Vilar Cortabitarte, Rocío | |
| dc.contributor.other | Universidad de Cantabria | es_ES |
| dc.date.accessioned | 2013-05-13T10:53:22Z | |
| dc.date.available | 2013-05-13T10:53:22Z | |
| dc.date.issued | 2010-03-05 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.issn | 1079-7114 | |
| dc.identifier.uri | http://hdl.handle.net/10902/2073 | |
| dc.description.abstract | We report the most restrictive direct limits on masses of fourth-generation down-type quarks b′, and quarklike composite fermions (B or T5/3), decaying promptly to tW∓. We search for a significant excess of events with two same-charge leptons (e, μ), several hadronic jets, and missing transverse energy. An analysis of data from pp̅ collisions with an integrated luminosity of 2.7 fb-1 collected with the CDF II detector at Fermilab yields no evidence for such a signal, setting mass limits mb′, mB>338 GeV/c2 and mT5/3>365 GeV/c2 at 95% confidence level. | es_ES |
| dc.description.sponsorship | We thank the Fermilab staff and the technical staffs of
the participating institutions for their vital contributions.
This 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, UK; 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 | |
| dc.format.extent | 7 p. | es_ES |
| dc.language.iso | eng | es_ES |
| dc.publisher | American Physical Society | es_ES |
| dc.rights | © 2010 The American Physical Society | es_ES |
| dc.source | Physical Review Letters, 2010, 104, 091801 | es_ES |
| dc.title | Search for new bottomlike quark pair decays QQ̅ →(tW∓)(t̅ W±) in same-charge dilepton events | es_ES |
| dc.type | info:eu-repo/semantics/article | es_ES |
| dc.relation.publisherVersion | http://doi.org/10.1103/PhysRevLett.104.091801 | |
| dc.rights.accessRights | openAccess | es_ES |
| dc.identifier.DOI | 10.1103/PhysRevLett.104.091801 | |
| dc.type.version | publishedVersion | es_ES |
