We update the measurement of the t (t) over bar production cross section using the CDF detector at the Fermilab Tevatron. This measurement uses t (t) over bar decays to the final states e + nu + jets and mu + nu + jets. We search for b quarks from t decays via secondary-vertex identification or the identification of semileptonic decays of the b and cascade c quarks. The background to the t (t) over bar 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(2), we measure sigma (t (t) over bar)-=5.1 +/- 1.5 pb and sigma (t (t) over bar)=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 (t) over bar decay channels and obtain sigma (t (t) over bar)-= 6.5 (+1.7)(-1.4)pb.

T., A., H., A., A., A., M. G., A., P., A., S. R., A., et al. (2001). Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.8 TeV. PHYSICAL REVIEW D, 64(3) [10.1103/PhysRevD.64.032002].

Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.8 TeV

PAOLETTI, RICCARDO;TURINI, NICOLA;
2001-01-01

Abstract

We update the measurement of the t (t) over bar production cross section using the CDF detector at the Fermilab Tevatron. This measurement uses t (t) over bar decays to the final states e + nu + jets and mu + nu + jets. We search for b quarks from t decays via secondary-vertex identification or the identification of semileptonic decays of the b and cascade c quarks. The background to the t (t) over bar 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(2), we measure sigma (t (t) over bar)-=5.1 +/- 1.5 pb and sigma (t (t) over bar)=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 (t) over bar decay channels and obtain sigma (t (t) over bar)-= 6.5 (+1.7)(-1.4)pb.
2001
T., A., H., A., A., A., M. G., A., P., A., S. R., A., et al. (2001). Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.8 TeV. PHYSICAL REVIEW D, 64(3) [10.1103/PhysRevD.64.032002].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/40244
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