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Search for a heavy neutral gauge boson in the dielectron channel with 5.4 fb(-1) of 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, p. 88-94Article in journal (Refereed) Published
Abstract [en]

We report the results of a search for a heavy neutral gauge boson Z' decaying into the dielectron final state using data corresponding to an integrated luminosity of 5.4 fb(-1) collected by the D0 experiment at the Fermilab Tevatron Collider. No significant excess above the standard model prediction is observed in the dielectron invariant-mass spectrum. We set 95 sigma(p (p) over bar -> Z') x BR(Z' -> ee) depending on the dielectron invariant mass. These cross section limits are used to determine lower mass limits for bosons in a variety of models. For the sequential standard model boson a lower mass limit of 1023 GeV is obtained.

Place, publisher, year, edition, pages
2011. Vol. 695, no 1-4, p. 88-94
Keywords [en]
Extensions of standard model, New gauge bosons
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-153230DOI: 10.1016/j.physletb.2010.10.059ISI: 000286708700017OAI: oai:DiVA.org:uu-153230DiVA, id: diva2:415724
Available from: 2011-05-09 Created: 2011-05-09 Last updated: 2017-12-11Bibliographically approved

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