Precise Measurement of the Top Quark Mass in the Lepton+jets Topology at CDF II. PDF Download

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Precise Measurement of the Top Quark Mass in the Lepton+jets Topology at CDF II.

Precise Measurement of the Top Quark Mass in the Lepton+jets Topology at CDF II. PDF Author:
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Languages : en
Pages : 7

Book Description
The authors 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. They analyze events from the single lepton plus jets final state (t{bar t} --> WbW−{bar b} --> lvbq{bar q}{bar b}). The top quark mass is extracted using a direct calculation of the probability density that each event corresponds to the t{bar t} 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, they achieve the single most precise measurement of the top quark mass, 170.8 ± 2.2(stat.) ± 1.4(syst.) GeV/c2.
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