scholarly journals Measurements of the Top Quark Pair Production Cross Section in Lepton + Jets Final States using a Topological Multivariate Technique as well as Lifetime b-Tagging in Proton-Anti-proton Collisions at √s =1.96 TeV with the DØ Detector at the Tevatron

2005 ◽  
Author(s):  
Tobias F. Golling
Keyword(s):  
Cross Section ◽  
Top Quark ◽  
Production Cross Section ◽  
Production Cross ◽  
Final States ◽  
Proton Collisions ◽  
Multivariate Technique ◽  
Lepton Jets ◽  
Pair Production Cross Section ◽  
B Tagging

MEASUREMENT OF THE TOP QUARK PAIR PRODUCTION CROSS SECTION IN LEPTON+JETS FINAL STATES AT DØ USING A MULTIVARIATE TECHNIQUE

2005 ◽  
Vol 20 (14) ◽  
pp. 3177-3179
Author(s):  
◽  
TOBIAS GOLLING
Keyword(s):  
Pair Production ◽  
Cross Section ◽  
Top Quark ◽  
Production Cross Section ◽  
Production Cross ◽  
Final States ◽  
Multivariate Technique ◽  
Text Production ◽  
Lepton Jets ◽  
Pair Production Cross Section

A measurement of the [Formula: see text] production cross-section at [Formula: see text] with the DØ detector at the Fermilab Tevatron, based on the application of a multivariate topological method is presented. The integrated luminosity corresponds to 143.9 pb-1 in the μ+jets and 141.2 pb-1 in the e+jets channel. The preliminary cross-section is measured to be [Formula: see text].

scholarly journals Measurements of the $t{\bar t}$ production cross section at the Tevatron Run II CDF experiment using b-tagging

2005 ◽  
Vol 20 (14) ◽  
pp. 3180-3182
Author(s):  
Henri Bachacou
Keyword(s):  
Cross Section ◽  
Top Quark ◽  
Production Cross Section ◽  
Transverse Energy ◽  
Production Cross ◽  
Secondary Vertex ◽  
Top Quark Mass ◽  
Lepton Jets ◽  
B Tagging ◽  
Text Signal

We present measurements of the [Formula: see text] production cross section in b-tagged lepton + jets events from [Formula: see text] collisions at 1.96 TeV using the CDF detector at Fermilab. B-jets are tagged with either a secondary vertex algorithm, or a soft lepton tagger that identifies muons from B hadron semileptonic decays. With Tevatron Run II data, we estimate the [Formula: see text] signal fraction in two different ways: by estimating the various background contributions, and by fitting directly the leading jet transverse energy spectrum for the signal and background contributions. A subset of the sample, with two secondary vertex tagged jets, yields a production cross section consistent with the inclusive measurements. Results are consistent with a Standard Model [Formula: see text] signal and current measurements of the top quark mass.

Sign in / Sign up

Export Citation Format

Share Document