par Acosta, Darin E.;De Lentdecker, Gilles ; [et al.]
Référence Physical review. D, Particles, fields, gravitation, and cosmology, 72, 3, page (1-20), 032002
Publication Publié, 2005
Article révisé par les pairs
Résumé : We present a measurement of the tt̄ production cross section using 194 pb-1 of CDF II data using events with a high transverse momentum electron or muon, three or more jets, and missing transverse energy. The measurement assumes 100% t→Wb branching fraction. Events consistent with tt̄ decay are found by identifying jets containing heavy-flavor semileptonic decays to muons. The dominant backgrounds are evaluated directly from the data. Based on 20 candidate events and an expected background of 9.5±1.1 events, we measure a production cross section of 5.3±3.3-1.0+1.3 pb, in agreement with the standard model. © 2005 The American Physical Society.