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First Observation of Diboson Production in Hadronic Final State at the Tevatron

2009/10/08 by J. Pursley, Pursley, J.
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ex

paper · pdf · doi:10.48550/arxiv.0910.1556

To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726 (6 pages, 4 figures, 2 tables)

arxiv created 2009/10/08 · openalex publication_date 2009/10/08 · openalex created_date 2016/06/24 · arxiv updated 2019/08/13 · openalex updated_date 2026/07/28

Abstract

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 hadronic final state. The data correspond to 3.5/fb of integrated luminosity collected by the CDF II detector in p-pbar collisions at a center-of-mass energy of 1.96 TeV. Event selection requires two identified jets and large transverse momentum imbalance. The analysis employs several novel techniques to suppress multijet background and reduce systematic uncertainties. We observe 1516 +/- 239(stat) +/- 144(syst) diboson candidate events and measure a cross section of sigma(ppbar to VV+X) = 18.0 +/- 2.8(stat) +/- 2.4(syst) +/- 1.1(lumi) pb, in agreement with standard model expectations.

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