Download or read book Simultaneous Heavy Flavor Fractions and Top Cross Section Measurement at the Collider Detector at Fermilab written by and published by . This book was released on 2010 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes the measurement of the top pair production cross section, using data from proton-antiproton collisions at a center-of-mass energy of 1.96 TeV, with 2.7 ± 0.2 fb−1 of data collected by the Collider Detector at Fermilab. Background contributions are measured concurrently with the top cross section in the b-tagged lepton-plus-jets sample using a kinematic fit, which simultaneously determines the cross sections and normalizations of t{bar t}, W + jets, QCD, and electroweak processes. This is the first application of a procedure of this kind. The top cross section is measured to be [sigma]{sub t{bar t}} = 7.64 ± 0.57(stat + syst) ± 0.45(lumi) pb and the Monte Carlo simulation scale factors K{sub Wb{bar b}} = 1.57 ± 0.25, K{sub Wc{bar c}} = 0.94 ± 0.79, K{sub Wc} = 1.9 ± 0.3, and K{sub Wq{bar q}} = 1.1 ± 0.3. These results are consistent with existing measurements using other procedures. More data will reduce the systematic uncertainties and will lead to the most precise of any single analysis to date.