%0 Journal Article
%T Measurement of the Ratio sigma(t(t)over-bar)/sigma(Z/gamma*-> ll) and Precise Extraction of the t(t)over-bar Cross Section
%A CDF Collaboration (Aaltonen, T. et al
%A Cabrera, S.
%J Physical Review Letters
%D 2010
%V 105
%N 1
%I Amer Physical Soc
%@ 0031-9007
%G English
%F CDFCollaborationAaltonen+Cabrera2010
%O ISI:000279273300001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=282), last updated on Mon, 21 Feb 2011 12:22:44 +0000
%X We report a measurement of the ratio of the t (t) over bar to Z/gamma* production cross sections in root s = 1.96 TeV p (p) over bar collisions using data corresponding to an integrated luminosity of up to 4.6 fb(-1), collected by the CDF II detector. The t (t) over bar cross section ratio is measured using two complementary methods, a b-jet tagging measurement and a topological approach. By multiplying the ratios by the well-known theoretical Z/gamma* -> ll cross section predicted by the standard model, the extracted t (t) over bar cross sections are effectively insensitive to the uncertainty on luminosity. A best linear unbiased estimate is used to combine both measurements with the result sigma(t (t) over bar) = 7.70 +/- 0.52 pb, for a top-quark mass of 172.5 GeV/c(2).
%R 10.1103/PhysRevLett.105.012001
%U http://arXiv.org/abs/1004.3224
%U https://doi.org/10.1103/PhysRevLett.105.012001
%P 012001-7pp