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Search for a narrow t(t)over-bar resonance 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, Vol. 85, no 5, 051101- p.Article in journal (Refereed) Published
Abstract [en]

We report a search for a narrow t (t) over bar resonance that decays into a lepton + jets final state based on an integrated luminosity of 5.3 fb(-1) of proton-antiproton collisions at root s = 1.96 TeV collected by the D0 Collaboration at the Fermilab Tevatron Collider. We set upper limits on the production cross section of such a resonance multiplied by its branching fraction to t (t) over bar. We exclude a leptophobic topcolor Z' at the 95% confidence level for masses below 835 GeV (940 GeV) if its width is 1.2% (3%) of its mass. We also exclude color octet vector bosons (colorons) with masses below 775 GeV.

Place, publisher, year, edition, pages
2012. Vol. 85, no 5, 051101- p.
National Category
Physical Sciences
URN: urn:nbn:se:su:diva-76154DOI: 10.1103/PhysRevD.85.051101ISI: 000301477700001OAI: diva2:525876


Available from: 2012-05-09 Created: 2012-05-09 Last updated: 2012-12-05Bibliographically approved

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Åsman, Barbro
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