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Título: | Search for s-channel single-top-quark production in events with missing energy plus jets in pp̅ collisions at √s=1.96TeV |
Autor: | Aaltonen, T.; Casal, Bruno CSIC; Cuevas, Javier CSIC ORCID; Gómez, Gervasio CSIC ORCID ; Palencia, Enrique CSIC ORCID; Ruiz Jimeno, Alberto CSIC ORCID ; Scodellaro, Luca CSIC ORCID ; Vilar Cortabitarte, R. CSIC ORCID; Vizán, J. CSIC ORCID; CDF Collaboration | Fecha de publicación: | 2014 | Editor: | American Physical Society | Citación: | Physical Review Letters 112: 231805 (2014) | Resumen: | The first search for single-top-quark production from the exchange of an s-channel virtual W boson using events with an imbalance in the total transverse energy, b-tagged jets, and no identified leptons is presented. Assuming the electroweak production of top quarks of mass 172.5GeV/c2 in the s channel, a cross section of 1.12-0.57+0.61 (stat+syst) pb with a significance of 1.9 standard deviations is measured. This measurement is combined with the result obtained from events with an imbalance in total transverse momentum, b-tagged jets, and exactly one identified lepton, yielding a cross section of 1.36-0.32+0.37 (stat+syst) pb, with a significance of 4.2 standard deviations. © 2014 American Physical Society. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevLett.112.231805 | URI: | http://hdl.handle.net/10261/110072 | DOI: | 10.1103/PhysRevLett.112.231805 | Identificadores: | doi: 10.1103/PhysRevLett.112.231805 e-issn: 1079-7114 issn: 0031-9007 |
Aparece en las colecciones: | (IFCA) Artículos |
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s-channel single-top-quark.pdf | 347,9 kB | Adobe PDF | Visualizar/Abrir |
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