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First Observation of Vector Boson Pairs in a Hadronic Final State at the Tevatron Collider

Journal article published in 2009 by C. Cuenca Almenar, B. A. Gonzalez, Terhi Aaltonen, Jahred A. Adelman, Takashi Akimoto, Bárbara Álvarez González, Barnes Ve, Silvia Amerio, Dante E. Amidei, Anton Anastassov, Alberto Annovi, Chen Yc, Jaroslav Antos, Giorgio Apollinari, Artur Apresyan and other authors.
This paper is available in a repository.
This paper is available in a repository.

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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 dijet final state. The data correspond to 3.5 fb{sup -1} of integrated luminosity of p{bar p} collisions at {radical}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 {sigma}(p{bar p} {yields} VV + X) of 18.0 {+-} 2.8(stat) {+-} 2.4(syst) {+-} 1.1(lumi) pb, in agreement with the expectations of the standard model.