Dº decays from e+e- collisions: precision, rare and substructure results
Bergfeld, Timothy John
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https://hdl.handle.net/2142/32091
Description
Title
Dº decays from e+e- collisions: precision, rare and substructure results
Author(s)
Bergfeld, Timothy John
Issue Date
2000
Director of Research (if dissertation) or Advisor (if thesis)
Selen, Mats A.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
D0 meson
CLEO II
Dº → K-π+πº
Language
en
Abstract
Three analyses of D0 meson decays are presented which use the data collected with the CLEO II detector at the Cornell Electron Storage Ring. First, a precision measurement of the ratio of the Dº → K-π+πº branching fraction to that of Dº → K-π+ is performed resulting in the best measurement to date. Second, a detailed high statistics study of the underlying resonant structure of the three body decay, Dº → K-π+πº, is carried out. The resulting Dalitz plot is well fi t by the inclusion of seven resonances, along with a non-resonant three body decay component. Finally a search for the radiative decays of the Dº meson is presented along with the four upper limits obtained.
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