Publication
Title
Precise measurement of the top-quark mass in the lepton+jets topology at CDF II
Author
Institution/Organisation
CDF Collaboration
Abstract
 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 (tt̅ →W+bW-b̅ →lνbqq̅ ′b̅ ). The top-quark mass is extracted using a direct calculation of the probability density that each event corresponds to the tt̅ 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.
Language
English
Source (journal)
Physical review letters. - New York, N.Y.
Publication
New York, N.Y. : 2007
ISSN
0031-9007
Volume/pages
99:18(2007), p. 182001,1-182001,7
ISI
000250644000015
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
 Faculty/Department Publication type Subject Affiliation Publications with a UAntwerp address