WINTER 2004 LEPTON + JETS SECVTX TAGGED CROSS SECTION RESULTS

Authors D. Amidei amidei@umich.edu H. Bachacou bachacou@fnal.gov J. S. Miller jsm@fnal.gov J. Nielsen nielsenj@fnal.gov T. Wright trwright@umich.edu W. Yao wmyao@lbl.gov Acknowledgments Koji Ebina and Kohei Yorita (and Ken) for completing the acceptance, with extensive systematic studies, for us. Ken Bloom and Evelyn Thomson as conveners of the Lepton+Jets Working Group for giving the support needed to complete this analysis.

Blessed Winter 2004 Cross Section Results, Using 162 pb-1 of data:
Winter 2004 Optimized Result : 5.6+1.2-1.0 (stat.) +1.0-0.7 (syst.) pb Winter 2004 Un-Optimized Result : 5.3+1.3-1.1 (stat.) +1.2-0.7 (syst.) pb Background and Data Summary Table, Requiring HT>200 (.tex), (.png) Background and Data Summary Table, no HT requirement (.tex), (.png) Blessed plots can be found on the public web-page.

Documentation

Cross Section Notes Optimized Measurement of the t-tbar Production Cross Section with SECVTX : CDF 6902 V2 Method 2 Secvtx Background Estimate and Measurement of the ttbar Cross Section : CDF 6907 Talks Blessing : Top Meeting March 18, 2004 Preblessing : Top Meeting March 04, 2004 Status Report : Top Meeting February 26, 2004 Status Report : Collaboration Meeting January 23, 2004 Double-tag cross-section Status Report : L+jets Meeting March 12, 2004

Supporting Documentation

Event Selection and Corrections Efficiency of SecVtx B-Tag Used for 2004 Winter Conferences : CDF 6904 V2 Data Samples : CDF 6548 Jet Corrections : CDF 6565 SecVtx Tagger : CDF 6543 SecVtx Tagger Optimization : CDF 6242 Mistag Matrix : CDF 6533 Denominator Luminosity : CDF 6052 Acceptance : CDF 6574 and CDF 6844 Event Tagging Efficiency in the B-tagged Lepton+Jets ttbar Cross Section : CDF 6598 Numerator Background Calculations for the B-tagged Lepton+Jets t-tbar Cross Section Analysis : CDF 6893 Measurement of the B Fraction in the Tagged W + 1 and 2 Jet Sample : CDF 6865 SECVTX Tag Composition and Heavy Flavor Fraction Studies in QCD Jets : CDF 6739 Background Summary : CDF 3513 Heavy Flavor : CDF 6570 Non-W : CDF 6569 Documentation for previous versions of the analysis.

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