This document presents a measurement of the top quark mass using the CDF
Run 2 detector at Fermilab. Colliding beams of protons and anti-protons at
Fermilab's Tevatron (sqrt(s) = 1.96 TeV) produce top/anti-top pairs, which
decay to W^+ W^- b b-bar; events are selected where one W decays
hadronically, and one W decays to either e or mu plus a neutrino. The data
sample was collected between March 2002 and September 2003, and
corresponds to an integrated luminosity of approximately 162 pb^-1.
Thirty-seven candidate t t-bar events are found with at least one b jet
identified by its displaced vertex. In each event, the best fit top quark
invariant mass is determined by minimizing a chi-squared for the
overconstrained kinematic system. A likelihood fit of the reconstructed
masses in the data sample to distributions from simulated signal and
background events gives a top mass of 174.9 +7.1/-7.7 (stat.) +/- 6.5
(syst.) GeV/c^2. The dominant systematic error is due to uncertainties in
the jet energy measurements.


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    http://www-cdf.fnal.gov/thesis/cdf7624_brubakee_thesis.pdf

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