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# Title:Search for a fourth generation t' quark in ppbar collisions at sqrt{s}=1.96 TeV

Authors:D0 Collaboration, V. Abazov, et al
Abstract: We present a search for pair production of a fourth generation t' quark and its antiparticle, followed by their decays to a W boson and a jet, based on an integrated luminosity of 5.3/fb of proton-antiproton collisions at sqrt{s}=1.96 TeV collected by the D0 Collaboration at the Fermilab Tevatron Collider. We set upper limits on the t't'bar production cross section that exclude at the 95% C.L. a t' quark that decays exclusively to W+jet with a mass below 285 GeV. We observe a small excess in the muon+jets channel which reduces the mass range excluded compared to the expected limit of 320 GeV in the absence of a signal.
 Comments: submitted to Phys. Rev. Letters Subjects: High Energy Physics - Experiment (hep-ex) DOI: 10.1103/PhysRevLett.107.082001 Report number: FERMILAB-PUB-11/191-E Cite as: arXiv:1104.4522 [hep-ex] (or arXiv:1104.4522v1 [hep-ex] for this version)

## Submission history

From: Ulrich Heintz [view email]
[v1] Sat, 23 Apr 2011 01:27:10 UTC (153 KB)
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