Search for Heavy Top-like Quarks Using Lepton Plus Jets Events in 1.96-TeV Collisions
Collaboration
7 pages
Published in:
- Phys.Rev.Lett. 100 (2008) 161803
e-Print:
- 0801.3877 [hep-ex]
Report number:
- FERMILAB-PUB-08-017-E
Experiments:
Citations per year
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
References(25)
Figures(2)