Observation of Diboson Production in a Semileptonic Decay at CDF

2009/10/19 by Martina Hurwitz, Hurwitz, Martina
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #hep-ex

paper · pdf · doi:10.48550/arxiv.0910.3549

To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726

arxiv created 2009/10/19 · arxiv updated 2019/08/13

Abstract

We present the first observation of WW+WZ production in the channel with an identified lepton and two jets in 2.7 fb^-1 of integrated luminosity collected with the CDF II detector in pp collisions at √(s) = 1.96 TeV. The signal is separated from the large background using matrix element calculations and is observed with a significance of 5.4σ. The WW+WZ production cross section is measured to be 17.7 ± 3.1(stat)± 2.4(sys) pb, in good agreement with standard model predictions. A complimentary measurement using a fit to the dijet mass is also presented.

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