We present a measurement of the top pair production cross section in pp̅ collisions at √s=1.96  TeV. We collect a data sample with an integrated luminosity of 194±11  pb-1 with the CDF II detector at the Fermilab Tevatron. We use an artificial neural network technique to discriminate between top pair production and background processes in a sample of 519 lepton+jets events, which have one isolated energetic charged lepton, large missing transverse energy and at least three energetic jets. We measure the top pair production cross section to be σtt̅ =6.6±1.1±1.5  pb, where the first uncertainty is statistical and the second is systematic.

T. AALTONEN, B.ALVAREZ GONZALEZV, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2005). Measurement of the cross section for tt̅ production in pp̅ collisions using the kinematics of lepton+jets events. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 72, 052003-1-052003-27 [10.1103/PhysRevD.72.052003].

Measurement of the cross section for tt̅ production in pp̅ collisions using the kinematics of lepton+jets events

BRIGLIADORI, LUCA;CASTRO, ANDREA;MOGGI, NICCOLO';MUSSINI, MANUEL;ZUCCHELLI, STEFANO
2005

Abstract

We present a measurement of the top pair production cross section in pp̅ collisions at √s=1.96  TeV. We collect a data sample with an integrated luminosity of 194±11  pb-1 with the CDF II detector at the Fermilab Tevatron. We use an artificial neural network technique to discriminate between top pair production and background processes in a sample of 519 lepton+jets events, which have one isolated energetic charged lepton, large missing transverse energy and at least three energetic jets. We measure the top pair production cross section to be σtt̅ =6.6±1.1±1.5  pb, where the first uncertainty is statistical and the second is systematic.
2005
T. AALTONEN, B.ALVAREZ GONZALEZV, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2005). Measurement of the cross section for tt̅ production in pp̅ collisions using the kinematics of lepton+jets events. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 72, 052003-1-052003-27 [10.1103/PhysRevD.72.052003].
T. AALTONEN; B.ALVAREZ GONZALEZV; S. AMERIO; D. AMIDEI; A. ANASTASSOV; A. ANNOVI; J. ANTOS; G. APOLLINARI; J.A. APPEL; A. APRESYAN; T. ARISAWA; A. ART...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/130345
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