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.

scholarly journals Measurement of the tt¯ production cross section and top quark mass extraction using dilepton events in pp¯ collisions

2009 ◽  
Vol 679 (3) ◽  
pp. 177-185 ◽  
Author(s):  
V.M. Abazov ◽  
B. Abbott ◽  
M. Abolins ◽  
B.S. Acharya ◽  
M. Adams ◽  
...  
Keyword(s):  
Cross Section ◽  
Top Quark ◽  
Production Cross Section ◽  
Quark Mass ◽  
Production Cross ◽  
Top Quark Mass ◽  
Dilepton Events

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 Measurement of the tt¯ production cross section in pp¯ collisions at s=1.96 TeV using lepton+jets events with lifetime b-tagging

2005 ◽  
Vol 626 (1-4) ◽  
pp. 35-44 ◽  
Author(s):  
V.M. Abazov ◽  
B. Abbott ◽  
M. Abolins ◽  
B.S. Acharya ◽  
M. Adams ◽  
...  
Keyword(s):  
Cross Section ◽  
Production Cross Section ◽  
Production Cross ◽  
Lepton Jets ◽  
B Tagging

CDF RESULTS ON TOP

1996 ◽  
Vol 11 (12) ◽  
pp. 2045-2064
Author(s):  
ANDREW BERETVAS
Keyword(s):  
Cross Section ◽  
Top Quark ◽  
Quark Mass ◽  
Production Cross ◽  
Secondary Vertex ◽  
Top Quark Mass ◽  
Final State ◽  
Vertex Detector ◽  
Text Production ◽  
Integrated Luminosity

CDF has established the existence of the top quark. Results from [Formula: see text] collisions at [Formula: see text] TeV are presented. In the dilepton final state we find seven events with a background of 1.3±0.3. In the e, μ+v+jets channel with a b identified via a secondary vertex detector (SVX), we find 21 events with a background of 5.5±1.8. We measure the top quark mass to be 176±8 (stat) ±10 (syst) GeV/c2, and the [Formula: see text] production cross section to be [Formula: see text] . The integrated luminosity for the results presented in this paper is 67 pb−1. The CDF detector needs to be upgraded for our next run. The integrated luminosity for the next run is expected to be more than 1000 pb −1.

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