%0 Journal Article
%T Search for a Heavy Toplike Quark in p p-bar Collisions at sqrt(s)=1.96 TeV
%A CDF Collaboration (Aaltonen, T. et al
%A Cabrera, S.
%J Physical Review Letters
%D 2011
%V 107
%N 26
%I Amer Physical Soc
%@ 0031-9007
%G English
%F CDFCollaborationAaltonen+Cabrera2011
%O WOS:000298609600002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=853), last updated on Mon, 30 Jan 2012 15:02:25 +0000
%X 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(-1) collected by the CDF II detector in p (p) over bar collisions at root 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'(t) over bar' production cross section and exclude a standard model fourth-generation t' quark decaying to Wb (Wq) with mass below 358 (340) GeV/c(2) at 95% C. L.
%R 10.1103/PhysRevLett.107.261801
%U http://arxiv.org/abs/1107.3875
%U https://doi.org/10.1103/PhysRevLett.107.261801
%P 261801-8pp