Measurement of the tt¯ production cross section in pp¯ collisions at s=1.96 TeV using lepton plus jets events with semileptonic B decays to muons
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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.
author list (cited authors)
Acosta, D., Adelman, J., Affolder, T., Akimoto, T., Albrow, M. G., Ambrose, D., ... Zucchelli, S.