Search for Heavy Top-like Quarks Using Lepton Plus Jets Events in 1.96-TeV ppˉp \bar{p} Collisions

Collaboration
Jan, 2008

Citations per year

2007201120152019202202468101214
Abstract: (arXiv)
We present the results of a search for pair production of a new heavy top-like quark t' decaying to a W boson and another quark using the CDF II detector in Run II of the Tevatron proton-antiproton collider. Using a data sample corresponding to 760 pb^-1 of integrated luminosity, we fit the observed spectrum of total transverse energy and reconstructed t' quark mass to a combination of standard model processes and t' pair production. We see no evidence for t' pair production, and we infer a lower limit of 256 GeV/c^2 on the mass of the t' at 95% C.L. assuming standard strong couplings for the t'.
Note:
  • 7 pages, 2 figures
  • 13.85.Rm
  • 14.80.-j
  • 12.60.-i
  • 14.65.Ha
  • anti-p p: colliding beams
  • final state: ((n)jet lepton)
  • new particle
  • heavy quark
  • family: 4
  • quark: pair production