Search for a fourth generation tt^\prime quark in ppˉp\bar{p} collisions at s=1.96\sqrt{s}=1.96 TeV

Collaboration
Apr, 2011

Citations per year

2011201420172020202305101520
Abstract: (arXiv)
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.
Note:
  • submitted to Phys. Rev. Letters
  • 13.85.Rm
  • 14.65.Jk
  • family: 4
  • top: pair production
  • Batavia TEVATRON Coll
  • heavy quark: pair production
  • anti-p p: interaction
  • new particle: search for
  • heavy quark: postulated particle
  • final state: ((n)jet lepton)