Home > Research > Publications & Outputs > Search for a fourth generation t' quark in ppba...

Electronic data

  • PhysRevLett

    Rights statement: © 2011 American Physical Society

    Final published version, 539 KB, PDF document


Text available via DOI:

View graph of relations

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

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Article number082001
<mark>Journal publication date</mark>16/08/2011
<mark>Journal</mark>Physical review letters
Issue number8
Number of pages7
Publication StatusPublished
<mark>Original language</mark>English


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.

Bibliographic note

© 2011 American Physical Society submitted to Phys. Rev. Letters