Publication
Title
Measurement of the top quark mass using template methods on dilepton events in collisions at =1.96 TeV
Author
Abstract
We describe a measurement of the top quark mass from events produced in pp̅ collisions at a center-of-mass energy of 1.96 TeV, using the Collider Detector at Fermilab. We identify tt̅ candidates where both W bosons from the top quarks decay into leptons (eν, μν, or τν) from a data sample of 360  pb-1. The top quark mass is reconstructed in each event separately by three different methods, which draw upon simulated distributions of the neutrino pseudorapidity, tt̅ longitudinal momentum, or neutrino azimuthal angle in order to extract probability distributions for the top quark mass. For each method, representative mass distributions, or templates, are constructed from simulated samples of signal and background events, and parametrized to form continuous probability density functions. A likelihood fit incorporating these parametrized templates is then performed on the data sample masses in order to derive a final top quark mass. Combining the three template methods, taking into account correlations in their statistical and systematic uncertainties, results in a top quark mass measurement of 170.1±6.0(stat.)±4.1(syst.)  GeV/c2.
Language
English
Source (journal)
Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003
Publication
Lancaster, Pa : 2006
ISSN
0556-2821
Volume/pages
73:11(2006), p. 112006,1-112006,23
ISI
000238698300015
Full text (Publishers DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 25.03.2010
Last edited 19.04.2017
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