# Measurement of the WW+WZ Production Cross Section Using a Matrix Element Technique in Lepton + Jets Events

Abstract : 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.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00515536
Contributor : Swarna Bassava <>
Submitted on : Tuesday, September 7, 2010 - 11:51:30 AM
Last modification on : Friday, April 16, 2021 - 9:19:30 AM

### Citation

T. Aaltonen, B. Alvarez Gonzalez, S. Amerio, D. Amidei, A. Anastassov, et al.. Measurement of the WW+WZ Production Cross Section Using a Matrix Element Technique in Lepton + Jets Events. Physical Review D, American Physical Society, 2010, 82, pp.112001. ⟨10.1103/PhysRevD.82.112001⟩. ⟨in2p3-00515536⟩

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