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Precise Measurement of the Top-Quark Mass in the Lepton + Jets Topology at CDF II

Contributeurs/tricesCDF Collaboration
Publié dansPhysical review letters, vol. 99, no. 18, 182002
Date de publication2007
Résumé

We present a measurement of the mass of the top quark from proton-antiproton collisions recorded at the CDF experiment in Run II of the Fermilab Tevatron. We analyze events from the single lepton plus jets final state (tt→W+bW−b→lνbqq′b). The top-quark mass is extracted using a direct calculation of the probability density that each event corresponds to the tt final state. The probability is a function of both the mass of the top quark and the energy scale of the calorimeter jets, which is constrained in situ by the hadronic W boson mass. Using 167 events observed in 955  pb−1 of integrated luminosity, we achieve the single most precise measurement of the top-quark mass, 170.8±2.2(stat.)±1.4(syst.)  GeV/c2.

Citation (format ISO)
CDF Collaboration. Precise Measurement of the Top-Quark Mass in the Lepton + Jets Topology at CDF II. In: Physical review letters, 2007, vol. 99, n° 18, p. 182002. doi: 10.1103/PhysRevLett.99.182002
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ISSN du journal0031-9007
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Création2014/07/01 16:26:00
Première validation2014/07/01 16:26:00
Heure de mise à jour2023/03/14 21:25:26
Changement de statut2023/03/14 21:25:26
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