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Measurement of trilinear gauge boson couplings from WW plus WZ -> lvjj events in p(p)over-bar collisions at root s=1.96 TeV
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2009 (English)In: Physical Review D, ISSN 1550-7998, Vol. 80, no 5, 053012- p.Article in journal (Refereed) Published
Abstract [en]

We present a direct measurement of trilinear gauge boson couplings at gamma WW and ZWW vertices inWW and WZ events produced in p (p) over bar collisions at root s = 1:96 TeV. We consider events with one electron or muon, missing transverse energy, and at least two jets. The data were collected using the D0 detector and correspond to 1:1 fb(-1) of integrated luminosity. Considering two different relations between the couplings at the gamma WW and ZWW vertices, we measure these couplings at 68% C.L. to be kappa(gamma) = 1.07(-0.29)(+0.26) lambda = 0.00(-0.06)(+0.00), and g(1)(Z) = 1.04(-0.09)(+0.09) in a scenario respecting SU(2)(L) circle times U(1)(Y) gauge symmetry and kappa = 1.04(-0.11)(+0.11) and lambda = 0.00(-0.06)(+0.06) in an "equal couplings'' scenario.

Place, publisher, year, edition, pages
2009. Vol. 80, no 5, 053012- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-127473DOI: 10.1103/PhysRevD.80.053012ISI: 000270384900035OAI: oai:DiVA.org:uu-127473DiVA: diva2:330570
Available from: 2010-07-16 Created: 2010-07-13 Last updated: 2010-07-16Bibliographically approved

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Uppsala UniversityDepartment of Physics and Astronomy
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