Journal
PHYSICS LETTERS B
Volume 726, Issue 4-5, Pages 656-664Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2013.09.048
Keywords
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Funding
- DOE (USA)
- NSF (USA)
- CEA (France)
- CNRS/IN2P3 (France)
- MON (Russia)
- NRC KI (Russia)
- RFBR (Russia)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FAPESP (Brazil)
- FUNDUNESP (Brazil)
- DAE (India)
- DST (India)
- Colciencias (Colombia)
- CONACyT (Mexico)
- NRF (Korea)
- FOM (The Netherlands)
- STFC (United Kingdom)
- Royal Society (United Kingdom)
- MSMT (Czech Republic)
- GACR (Czech Republic)
- BMBF (Germany)
- DFG (Germany)
- SFI (Ireland)
- Swedish Research Council (Sweden)
- CAS (China)
- CNSF (China)
- Science and Technology Facilities Council [ST/K000713/1, ST/L00335X/1, ST/H00095X/2, PP/E000487/1, ST/M001474/1, ST/M000664/1, ST/J501074/1, ST/H001069/2, ST/H00095X/1, ST/F007418/1, ST/K50208X/1, ST/I505756/1, ST/F00754X/1, ST/K000195/1, ST/K001388/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1066578] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1206092, 0969555, 1205960] Funding Source: National Science Foundation
- STFC [ST/L00335X/1, ST/K000713/1, ST/K000195/1, ST/H00095X/2, ST/M000664/1, ST/K50208X/1, ST/K001388/1, PP/E000487/1, ST/F00754X/1, ST/H001069/2, ST/J501074/1, ST/H00095X/1, ST/F007418/1, ST/I505756/1] Funding Source: UKRI
- ICREA Funding Source: Custom
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We present measurements of the cross sections for the two main production modes of single top quarks in p (p) over bar collisions at root s = 1.96 TeV in the Run II data collected with the DO detector at the Fermilab Tevatron Collider, corresponding to an integrated luminosity of 9.7 fb(-1). The s-channel cross section is measured to be sigma(p (p) over bar -> tb + X) = 1.10(-0.31)(+0.33) pb with no assumptions on the value of the t-channel cross section. Similarly, the t-channel cross section is measured to be sigma(p (p) over bar -> tqb + X) = 3.07(-0.49)(+0.54) pb. We also measure the s + t combined cross section as sigma(p (p) over bar -> tb + X, tqb + X) = 4.11(-0.55)(+0.60) ph and set a lower limit on the CKM matrix element vertical bar V-tb vertical bar> 0.92 at 95% C.L., assuming mt = 172.5 GeV. The probability to measure a cross section for the s channel at the observed value or higher in the absence of signal is 1.0 x 10(-4), corresponding to a significance of 3.7 standard deviations. @ 2013 Elsevier B.V. All rights reserved.
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