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Z(gamma) production and limits on anomalous ZZ(gamma) and Z(gamma gamma) couplings in p(p)over-bar collisions at root s 1.96 TeV
Stockholm University, Faculty of Science, Department of Physics.
2012 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 85, no 5, 052001- p.Article in journal (Refereed) Published
Abstract [en]

We present a measurement of p (p) over bar -> Z gamma -> l(+)l(-)gamma (l = e, mu) production with a data sample corresponding to an integrated luminosity of 6.2 fb(-1) collected by the D0 detector at the Fermilab Tevatron p (p) over bar Collider. The results of the electron and muon channels are combined, and we measure the total production cross section and the differential cross section d(sigma)/dp(T)(gamma), where p(T)(gamma) is the momentum of the photon in the plane transverse to the beam line. The results obtained are consistent with the standard model predictions from next-to-leading order calculations. We use the transverse momentum spectrum of the photon to place limits on anomalous ZZ gamma and Z gamma gamma couplings.

Place, publisher, year, edition, pages
2012. Vol. 85, no 5, 052001- p.
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Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-77005DOI: 10.1103/PhysRevD.85.052001ISI: 000300937900002OAI: oai:DiVA.org:su-77005DiVA: diva2:528798
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410

Available from: 2012-05-28 Created: 2012-05-28 Last updated: 2017-12-07Bibliographically approved

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