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| Título: | Search for a Heavy Toplike Quark in pp̅ Collisions at √s=1.96 TeV |
Autor: | Aaltonen, T.; Álvarez González, B.; Casal, Bruno CSIC; Cuevas, Javier CSIC ORCID; Gómez, Gervasio CSIC ORCID ; Rodrigo, Teresa CSIC ORCID ; Ruiz Jimeno, Alberto CSIC ORCID ; Scodellaro, Luca CSIC ORCID ; Vila, Iván CSIC ORCID; Vila, Iván CSIC ORCID; Cabrera, Susana CSIC ORCID; Cuenca Almenar, Cristóbal CSIC | Fecha de publicación: | dic-2011 | Editor: | American Physical Society | Citación: | Physical Review Letters 107(26): 261801 (2011) | Resumen: | We present the results of a search for pair production of a heavy toplike (t′) quark decaying to Wq final states using data corresponding to an integrated luminosity of 5.6 fb-1 collected by the CDF II detector in pp̅ collisions at √s=1.96 TeV. We perform parallel searches for t′→Wb and t′→Wq (where q is a generic down-type quark) in events containing a lepton and four or more jets. By performing a fit to the two-dimensional distribution of total transverse energy versus reconstructed t′ quark mass, we set upper limits on the t′t̅ ′ production cross section and exclude a standard model fourth-generation t′ quark decaying to Wb (Wq) with mass below 358 (340) GeV/c2 at 95% C.L. | Descripción: | 8 páginas, 3 figuras, 3 tablas.-- CDF Collaboration: et al. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevLett.107.261801 | URI: | http://hdl.handle.net/10261/46536 | DOI: | 10.1103/PhysRevLett.107.261801 | ISSN: | 0031-9007 | E-ISSN: | 1079-7114 |
| Aparece en las colecciones: | (IFIC) Artículos (IFCA) Artículos |
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| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| e261801.pdf | 356,68 kB | Adobe PDF |  Visualizar/Abrir |
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