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Measurement of the tt̅ production cross section in 2  fb(-1) of pp̅ collisions at √s=1.96  TeV using lepton plus jets events with soft muon b tagging

By Si Xie, K. Makhoul, Bruce O. Knuteson, C. Henderson, Kristian Allan Hahn, M. Goncharov, Guillelmo Gomez-Ceballos, Georgios Choudalakis, Gerry P. Bauer and Christoph M. E. Paus


We present a measurement of the tt̅ production cross section in pp̅ collisions at √s=1.96  TeV using events containing a high transverse momentum electron or muon, three or more jets, and missing transverse energy. Events consistent with tt̅ decay are found by identifying jets containing candidate heavy-flavor semileptonic decays to muons. The measurement uses a CDF run II data sample corresponding to 2  fb[superscript -1] of integrated luminosity. Based on 248 candidate events with three or more jets and an expected background of 79.5±5.3 events, we measure a production cross section of 9.1±1.6  pb.Academy of FinlandSlovak R&D AgencyPrograma Consolider-Ingenio 2010, SpainMinisterio de Ciencia e Innovación, SpainRussian Foundation for Basic ResearchInstitut National de Physique Nucleaire et Physique des Particules/CNRSRoyal Society, United KingdomScience and Technology Facilities Council, United KingdomKorean Research FoundationKorean Science and Engineering FoundationBundesministerium für Bildung und Forschung, GermanyAlfred P. Sloan FoundationSwiss National Science FoundationNational Science Council of the Republic of ChinaNatural Sciences and Engineering Research Council of CanadaMinistry of Education, Culture, Sports, Science and Technology of JapanItalian Istituto Nazionale di Fisica NucleareNational Science FoundationUnited States Department of Energ

Publisher: 'American Physical Society (APS)'
Year: 2009
DOI identifier: 10.1103/PhysRevD.79.052007
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Provided by: DSpace@MIT
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