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Evidence for s-Channel Single-Top-Quark Production in Events with One Charged Lepton and Two Jets at CDF

Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Paus, Christoph M. E.
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Abstract
We report evidence for s-channel single-top-quark production in proton-antiproton collisions at center-of-mass energy √s = 1.96  TeV using a data set that corresponds to an integrated luminosity of 9.4  fb[superscript −1] collected by the Collider Detector at Fermilab. We select events consistent with the s-channel process including two jets and one leptonically decaying W boson. The observed significance is 3.8 standard deviations with respect to the background-only prediction. Assuming a top-quark mass of 172.5  GeV/c[superscript 2], we measure the s-channel cross section to be 1.41[+0.44 over −0.42]  pb.
Date issued
2014-06
URI
http://hdl.handle.net/1721.1/90887
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aaltonen, T., S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, et al. “Evidence for s-Channel Single-Top-Quark Production in Events with One Charged Lepton and Two Jets at CDF.” Physical Review Letters 112, no. 23 (June 2014). © 2014 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114

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