Download or read book A Simultaneous Measurement of the B-tagging Efficiency Scale Factor and the Tt Production Cross Section at the Collider Detector at Fermilab written by Nazim Hussain and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to compare results between Monte Carlo and data is imperative in modern experimental high-energy physics analyses. The b-tagging efficiency Scale Factor (SF) allows for an accurate comparison of b quark identification in data samples and Monte Carlo. This thesis presents a simultaneous measurement of the SF for the SecVtx algorithm and the t t production cross section using 5.6 fb−1 of pp̄ collision data at √s = 1.96 TeV collected by the Collider Detector at Fermilab (CDF) experiment. The t t cross section was measured to be 7.26±0.47 pb, consistent with prior CDF analyses. The tight SF value was measured to be 0.925±0.032 and the loose SF value was measured at 0.967±0.033. These are the most precise SF SecVtx measurements to be performed at CDF to date.