Aaltonen, T;
Adelman, J;
Gonzalez, BA;
Amerio, S;
Amidei, D;
Anastassov, A;
Annovi, A;
... CDF Collaboration, .; + view all
(2010)
Measurement of the Ratio sigma(t(t)over-bar)/sigma(Z/gamma*-> ll) and Precise Extraction of the t(t)over-bar Cross Section.
PHYS REV LETT
, 105
(1)
, Article 012001. 10.1103/PhysRevLett.105.012001.
![]() Preview |
PDF
132037.pdf Download (200kB) |
Abstract
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).
Type: | Article |
---|---|
Title: | Measurement of the Ratio sigma(t(t)over-bar)/sigma(Z/gamma*-> ll) and Precise Extraction of the t(t)over-bar Cross Section |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevLett.105.012001 |
Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.105.012001 |
Language: | English |
Additional information: | © 2010 The American Physical Society |
Keywords: | COLLISIONS, PHYSICS |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
URI: | https://discovery.ucl.ac.uk/id/eprint/132037 |
Archive Staff Only
![]() |
View Item |