We present a measurement of the t (t) over bar 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 t (t) over bar 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.

Measurement of the t(t)over bar production cross section in p(p)over bar collisions at root s=1.96 TeV using lepton plus jets events with semileptonic B decays to muons

CIOCCI, MARIA AGNESE;DONATI, SIMONE;
2005-01-01

Abstract

We present a measurement of the t (t) over bar 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 t (t) over bar 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
D., Acosta; J., Adelman; T., Affolder; T., Akimoto; M. G., Albrow; D., Ambrose; S., Amerio; D., Amidei; A., Anastassov; K., Anikeev; A., Annovi; J., A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/828900
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