Measurement of the WW+WZ production cross section using a matrix element technique in lepton+jets events
| Contribuinte(s) |
University of Helsinki, Department of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Department of Physics University of Helsinki, Department of Physics |
|---|---|
| Data(s) |
01/12/2010
|
| Resumo |
We present a measurement of the $WW+WZ$ production cross section observed in a final state consisting of an identified electron or muon, two jets, and missing transverse energy. The measurement is carried out in a data sample corresponding to up to 4.6~fb$^{-1}$ of integrated luminosity at $\sqrt{s} = 1.96$ TeV collected by the CDF II detector. Matrix element calculations are used to separate the diboson signal from the large backgrounds. The $WW+WZ$ cross section is measured to be $17.4\pm3.3$~pb, in agreement with standard model predictions. A fit to the dijet invariant mass spectrum yields a compatible cross section measurement. |
| Formato |
15 |
| Identificador |
http://hdl.handle.net/10138/23870 1550-7998 |
| Idioma(s) |
eng |
| Publicador |
American Physical Society |
| Relação |
Physical Review D : Particles, Fields, Gravitation and Cosmology |
| Fonte |
Aaltonen , T , Brücken , E , Devoto , F , Mehtälä , P , Orava , R & CDF Collaboration 2010 , ' Measurement of the WW+WZ production cross section using a matrix element technique in lepton+jets events ' Physical Review D : Particles, Fields, Gravitation and Cosmology , vol 82 , no. 11 , pp. 112001 . , 10.1103/PhysRevD.82.112001 |
| Palavras-Chave | #114 Physical sciences |
| Tipo |
A1 Refereed journal article info:eu-repo/semantics/article |
