Observation of Electroweak Single Top-Quark Production
| Contribuinte(s) |
University of Helsinki, Department of Physics University of Helsinki, Department of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Department of Physics University of Helsinki, Department of Physics University of Helsinki, Department of Physics |
|---|---|
| Data(s) |
2009
|
| Resumo |
We report the first observation of single top quark production using 3.2 fb^-1 of pbar p collision data with sqrt{s}=1.96 TeV collected by the Collider Detector at Fermilab. The significance of the observed data is 5.0 standard deviations, and the expected sensitivity for standard model production and decay is in excess of 5.9 standard deviations. Assuming m_t=175 GeV/c^2, we measure a cross section of 2.3 +0.6 -0.5 (stat+syst) pb, extract the CKM matrix element value |V_{tb}|=0.91 +-0.11 (stat+syst) 0.07(theory), and set the limit |V_{tb}|>0.71 at the 95% C.L. |
| Formato |
8 |
| Identificador |
http://hdl.handle.net/10138/24478 0031-9007 |
| Idioma(s) |
eng |
| Publicador |
American Institute of Physics |
| Relação |
Physical Review Letters |
| Fonte |
Aaltonen , T , Mehtälä , P , Mäki , T , Orava , R , Saarikko , H , Österberg , K & CDF collaboration 2009 , ' Observation of Electroweak Single Top-Quark Production ' Physical Review Letters , vol 103 , no. 9 , pp. 092002 . , 10.1103/PhysRevLett.103.092002 |
| Palavras-Chave | #hep-ex #114 Physical sciences |
| Tipo |
A1 Refereed journal article info:eu-repo/semantics/article |
