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Title

Observation of s-channel production of single top quarks at the tevatron

AuthorsAaltonen, T.; Casal, Bruno ; Cuevas, Javier ; Gómez, G. ; Palencia, Enrique ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vilar, Rocío ; Vizán, J. ; CDF Collaboration
Issue Date2014
PublisherAmerican Physical Society
CitationPhysical Review Letters 112: 231803 (2014)
AbstractWe report the first observation of single-top-quark production in the s channel through the combination of the CDF and D0 measurements of the cross section in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7fb-1 per experiment. The measured cross section is σs=1.29-0.24+0.26pb. The probability of observing a statistical fluctuation of the background to a cross section of the observed size or larger is 1.8×10-10, corresponding to a significance of 6.3 standard deviations for the presence of an s-channel contribution to the production of single-top quarks. © 2014 American Physical Society.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.112.231803
URIhttp://hdl.handle.net/10261/110154
DOI10.1103/PhysRevLett.112.231803
Identifiersdoi: 10.1103/PhysRevLett.112.231803
e-issn: 1079-7114
issn: 0031-9007
Appears in Collections:(IFCA) Artículos
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