Measurement of thett¯production cross section inpp¯collisions ats=1.8TeV

A A Affolder ,K Tollefson,J Steele,A Bhatti,A Connolly,D O Litvintsev,W Carithers,I Fiori,M Bishai,G Punzi,S Rolli,K Sliwa,D Glenzinski,M Gold,K Ragan,D Wolinski,M Guenther,J Iwai,J B Liu,A T Goshaw,N B Wallace,R Culbertson,J I Lamoureux,L Malferrari,L Christofek,A Gordon,J Yoh,H Akimoto,J Spalding,W Orejudos,A Meyer,D Khazins,R L Wagner,T Vaiciulis,S H Oh,E Wicklund,D Partos,F Zetti,S Lusin,R Handler,H Minato,S Baroiant,S Vejcik,M Mangano,H S Budd,W K Sakumoto,T Kuwabara,K L Byrum,G W Foster,D W Gerdes,D Amidei,M W Bailey,T J Phillips,G Velev,P F Shepard,A Brandl,M L Chu,W Bokhari,W Caskey,P Schlabach,P K Teng,J Cranshaw,C Pagliarone,P Gatti,R D Field,C Neu,A Ribon,S E Kuhlmann,K S Mcfarland,M Mishina,K D Hoffman,A Munar,A T Laasanen,R Vilar,R St Denis,N Bruner,M P Schmidt,F Spinella,A J Slaughter,E Engels,C Yosef,G Pauletta,M Garcia-Sciveres,J Lancaster,P Koehn,K Karr,H Toyoda,Y Morita,S Errede,D Errede,F Palmonari,K Kondo,M Campbell,D Toback,R D Kennedy,J Huston,M Loreti,D Vucinic,M Shimojima,P Lukens,D Cronin-Hennessy,J Patrick,W H Bell,L Nodulman,A Reichold,W C Wester,D Neuberger,G Piacentino,W Ashmanskas,M Menguzzato,S Segler,S P Pappas,J Valls,P Mazzanti,S Klimenko,J D Lewis,M Lindgren,A Akopian,T Kaneko,G Pope,W J Robertson,A Tollestrup,S R Amendolia,J Siegrist,M Lancaster,J Boudreau,Y S Chung,J Budagov,S Tether,D Waters,M J Kim,R Vidal,S Wolinski,A Rakitine,Y Gotra,J Wolinski,D Winn,J Cassada,L Holloway,R Oishi,B Tannenbaum,G Bauer,N Lai,P Tamburello,R E Blair,A D Hardman,P F Derwent,S Bailey,A M Walsh,A Mukherjee,E Buckley-Geer,S H Kim,R Kephart,C Haber,A Köngeter,A Semenov,F D Snider,S Tkaczyk,T Asakawa,A S Thompson,L Groer,V Papadimitriou,K Anikeev,V Nagaslaev,T Miao,O Lobban,E James,T Handa,E E Schmidt,G Martignon,M Franklin,L Rosenson,H H Williams,S Lami,O Pukhov,Q Fan,T Wilkes,A Menzione,S Zucchelli,F Happacher,F Ptohos,B A Barnett,P Amaral,R Cropp,N Moggi,J Done,T Ohsugi,K Kurino,S Miscetti,Y Bonushkin,J Conway,J E Elias,R Madrak,B Flaugher,T Speer,A 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Chang ,Wei-Ming Yao ,J Guimarães Da Costa

doi:10.1103/physrevd.64.032002

Abstract

We update the measurement of the t{bar t} production cross section using the CDF detector at the Fermilab Tevatron. This measurement use t{bar t} decays to the final states e+v+jets and {mu}+v+jets. We search for b quarks from t decays via secondary-vertex identification or the identification of semileptonic decayse of the b and cascade c quarks. The background to the t{bar t} production is determined primarily through a Monte Carlo simulation. However, we calibrate the simulation and evaluate its uncertainty using several independent data samples. For a top quark mass of 175 GeV/c{sup 2}, we measure {sigma}{sub t{bar t}}=5.1{+-}1.5 pb and {sigma}{sub t{bar t}}=9.2{+-}4.3 pb using the secondary vertex and the lepton tagging algorithms, respectively. Finally, we combine these results with those from other t{bar t} decay channels and obtain {sigma}{sub t{bar t}}=6.5{sub -1.4}{sup +1.7} pb.

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