First Observation of Vector Boson Pairs in a Hadronic Final State at the Tevatron Collider
| Contribuinte(s) |
University of Helsinki, Department of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Department of Physics University of Helsinki, Helsinki Institute of Physics (HIP) (-2009) University of Helsinki, Department of Physics University of Helsinki, Department of Physics |
|---|---|
| Data(s) |
2009
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| Resumo |
We present the first observation in hadronic collisions of the electroweak production of vector boson pairs (VV, V=W, Z) where one boson decays to a dijet final state. The data correspond to 3.5 fb-1 of integrated luminosity of pp̅ collisions at √s=1.96 TeV collected by the CDF II detector at the Fermilab Tevatron. We observe 1516±239(stat)±144(syst) diboson candidate events and measure a cross section σ(pp̅ →VV+X) of 18.0±2.8(stat)±2.4(syst)±1.1(lumi) pb, in agreement with the expectations of the standard model. We present the first observation in hadronic collisions of the electroweak production of vector boson pairs (VV, V=W,Z) where one boson decays to a dijet final state . The data correspond to 3.5 inverse femtobarns of integrated luminosity of ppbar collisions at sqrt(s)=1.96 TeV collected by the CDFII detector at the Fermilab Tevatron. We observe 1516+/-239(stat)+/-144(syst) diboson candidate events and measure a cross section sigma(ppbar->VV+X) of 18.0+/-2.8(stat)+/-2.4(syst)+/-1.1(lumi) pb, in agreement with the expectations of the standard model. |
| Formato |
7 |
| Identificador |
http://hdl.handle.net/10138/24444 0031-9007 |
| Idioma(s) |
eng |
| Publicador |
American Institute of Physics |
| Relação |
Physical Review Letters http://prl.aps.org/pdf/PRL/v103/i9/e091803 |
| Fonte |
Aaltonen , T , Mehtälä , P , Orava , R , Mäki , T , Saarikko , H , Österberg , K & CDF Collaboration 2009 , ' First Observation of Vector Boson Pairs in a Hadronic Final State at the Tevatron Collider ' , Physical Review Letters , vol 103 , no. 9 , pp. 091803 . |
| Palavras-Chave | #hep-ex #114 Physical sciences |
| Tipo |
A1 Refereed journal article document info:eu-repo/semantics/article |
