Publication
Title
Measurement of the ratio $\sigma_{t\overline{t}}/\sigma_{Z/\gamma^{*}\rightarrow ll}$ and precise extraction of the $t\overline{t}$ cross section
Author
Institution/Organisation
CDF Collaboration
Abstract
 We report a measurement of the ratio of the tt̅ to Z/γ* production cross sections in √s=1.96  TeV pp̅ collisions using data corresponding to an integrated luminosity of up to 4.6  fb-1, collected by the CDF II detector. The tt̅ 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/γ*→ll cross section predicted by the standard model, the extracted tt̅ cross sections are effectively insensitive to the uncertainty on luminosity. A best linear unbiased estimate is used to combine both measurements with the result σtt̅ =7.70±0.52  pb, for a top-quark mass of 172.5  GeV/c2.
Language
English
Source (journal)
Physical review letters. - New York, N.Y.
PHYSICAL REVIEW LETTERS
Publication
New York, N.Y. : 2010
ISSN
0031-9007
Volume/pages
105:1(2010), p. 012001,1-012001,7
Article Reference
012001
ISI
000279273300001
Medium
E-only publicatie
Full text (Publishers DOI)
Full text (open access)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address