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 / Acosta, D., Adelman, J., Affolder, T., Akimoto, T., Albrow, M.g., Ambrose, D., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., Annovi, A., Antos, J., Aoki, M., Apollinari, G., Arisawa, T., Arguin, J.f., Artikov, A., Ashmanskas, W., Attal, A., Azfar, F., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 72:(2005). [10.1103/physrevd.72.032002]

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

DE CECCO, Sandro;DIONISI, Carlo;GIAGU, Stefano;LOVERRE, Pier Ferruccio;
2005

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
01 Pubblicazione su rivista::01a Articolo in rivista
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 / Acosta, D., Adelman, J., Affolder, T., Akimoto, T., Albrow, M.g., Ambrose, D., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., Annovi, A., Antos, J., Aoki, M., Apollinari, G., Arisawa, T., Arguin, J.f., Artikov, A., Ashmanskas, W., Attal, A., Azfar, F., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 72:(2005). [10.1103/physrevd.72.032002]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/234648
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