%0 Journal Article
%T Exclusion of an Exotic Top Quark with-4/3 Electric Charge Using Soft Lepton Tagging
%A CDF Collaboration (Aaltonen, T. et al
%A Cabrera, S.
%J Physical Review Letters
%D 2010
%V 105
%N 10
%I Amer Physical Soc
%@ 0031-9007
%G English
%F CDFCollaborationAaltonen+Cabrera2010
%O ISI:000281406900003
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=274), last updated on Mon, 21 Feb 2011 12:21:53 +0000
%X We present a measurement of the electric charge of the top quark using p (p) over bar collisions corresponding to an integrated luminosity of 2: 7 fb(-1) at the CDF II detector. We reconstruct t (t) over bar events in the lepton + jets final state. We use soft lepton taggers to determine the flavor of the b jets, which we use to reconstruct the top quark's electric charge and exclude an exotic top quark with -4/3 charge at 95% confidence level. This is the strongest exclusion of the exotic charge scenario and the first to use soft leptons for this purpose.
%R 10.1103/PhysRevLett.105.101801
%U http://arXiv.org/abs/1006.4597
%U https://doi.org/10.1103/PhysRevLett.105.101801
%P 101801-7pp