Dear Collaborator, The dissertation entitled "A Study of Exclusive Nonleptonic Decays of B Mesons into Final States of Strange Mesons and 1S or 2S Charmonia" was defended by Andreas Warburton on 18 December 1997 at the University of Toronto, Canada. This CDF-note posting is required for the inclusion of the document in the electronic CDF thesis archive. An abridged abstract: Four B-meson decays and their charge conjugates are studied: B+ -> J/psi K+, B0 -> J/psi K*(892)0, B+ -> psi(2S) K+, and B0 -> psi(2S) K*(892)0. Using a data sample corresponding to a time-integrated luminosity of 109 +- 7 pb^{-1}, statistically significant signals are observed in all the channels. Topological similarities between the B decays are exploited to measure the six relative branching fractions (Br) of each channel with respect to the other channels. Absolute branching fractions are extracted by normalizing the ratio measurements to the world-average value of Br(B+ -> J/psi K+). The B+ -> psi(2S) K+ and B0 -> psi(2S) K*(892)0 reconstructions are the first observations of these processes at a hadron collider. The branching-fraction ratio measurements are consistent with phenomenological predictions that employ the factorization Ansatz, and the absolute branching-fraction measurements are consistent with previous world-average limits and values from e+ e- colliders. The measured branching fractions that involve psi(2S) final states constitute the world's most precise measurements of these quantities. Posted to /cdf/pub/thesis/cdf4583_warburton_thesis.ps http://www-cdf.fnal.gov/thesis/cdf4583_warburton_thesis.ps Posted by awarburt@cdfsga