Search for a Heavy Toplike Quark in pp̅ Collisions at √s=1.96 TeV
Author(s)Bauer, Gerry P.; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Makhoul, K.; Paus, Christoph M. E.
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We present the results of a search for pair production of a heavy toplike (t′) quark decaying to Wq final states using data corresponding to an integrated luminosity of 5.6 fb[superscript -1] collected by the CDF II detector in pp̅ collisions at √s=1.96 TeV. We perform parallel searches for t′→Wb and t′→Wq (where q is a generic down-type quark) in events containing a lepton and four or more jets. By performing a fit to the two-dimensional distribution of total transverse energy versus reconstructed t′ quark mass, we set upper limits on the t′t̅ ′ production cross section and exclude a standard model fourth-generation t′ quark decaying to Wb (Wq) with mass below 358 (340) GeV/c[superscript 2] at 95% C.L.
DepartmentMassachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Physical Review Letters
American Physical Society (APS)
Aaltonen, T. et al. “Search for a Heavy Toplike Quark in Pp[over ¯] Collisions at Sqrt[s]=1.96 TeV.” Physical Review Letters 107.26 (2011): n. pag. Web. 24 Feb. 2012. © 2011 American Physical Society
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