Journal
PHYSICAL REVIEW LETTERS
Volume 112, Issue 23, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.231803
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- U.S. DOE (U.S.)
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- EU community Marie Curie Fellowship [302103]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1206092] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1306951, 1205960] Funding Source: National Science Foundation
- Grants-in-Aid for Scientific Research [23540338] Funding Source: KAKEN
- Science and Technology Facilities Council [ST/M001474/1, ST/H001026/2, ST/H001069/2, ST/H001026/1, ST/K00137X/1, ST/K001418/1, ST/K00140X/1, ST/L006464/1, ST/L00352X/1, ST/M000761/1] Funding Source: researchfish
- STFC [ST/K00140X/1, ST/L00352X/1, ST/M000761/1, ST/H001069/2, ST/K00137X/1, ST/H001026/2, ST/H001026/1, ST/L006464/1] Funding Source: UKRI
- ICREA Funding Source: Custom
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We 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 9.7 fb(-1) per experiment. The measured cross section is sigma(s) = 1.29(-0.24)(+0.26) pb. The probability of observing a statistical fluctuation of the background to a cross section of the observed size or larger is 1.8 x 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.
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