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Measurement of the WZ -> lvll cross section and limits on anomalous triple gauge couplings in p(p)over-bar collisions at root s=1.96 TeV
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2011 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 695, no 1-4, 67-73 p.Article in journal (Refereed) Published
Abstract [en]

We present a new measurement of the WZ -> lvll (l = e, mu) cross section and limits on anomalous triple gauge couplings. Using 4.1 fb(-1) of integrated luminosity of p (p) over bar collisions at root s = 1.96 TeV, we observe 34 WZ candidate events with an estimated background of 6.0 +/- 0.4 events. We measure the WZ production cross section to be 3.89(-0.90)(+1.07) pb, in good agreement with the standard model prediction. We find no evidence for anomalous WWZ couplings and set 95% C.L. limits on the coupling parameters, -0.077 < lambda(z) < 0.093 and -0.029 < Delta kappa(z) < 0.080 in the HISZ parameterization for a Lambda = 2 TeV form factor scale. These are the best limits to date obtained from the direct measurement of the WWZ vertex.

Place, publisher, year, edition, pages
2011. Vol. 695, no 1-4, 67-73 p.
Keyword [en]
Diboson production, W and Z bosons, Cross section, Anomalous triple gauge couplings, Tevatron, DO
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-153229DOI: 10.1016/j.physletb.2010.10.047ISI: 000286708700013OAI: oai:DiVA.org:uu-153229DiVA: diva2:415739
Available from: 2011-05-09 Created: 2011-05-09 Last updated: 2017-12-11Bibliographically approved

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