A study of short-lived deuterium and short-lived deuterium* mesons
Freese, Timothy Jay
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https://hdl.handle.net/2142/22942
Description
Title
A study of short-lived deuterium and short-lived deuterium* mesons
Author(s)
Freese, Timothy Jay
Issue Date
1990
Department of Study
Physics
Discipline
Physics
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, Elementary Particles and High Energy
Language
eng
Abstract
Hadronic decays of the $D\sb{s}$ are studied in $e\sp+e\sp-$ annihilation at center-of-mass energy 4.14 GeV/c$\sp2$. The data were collected with the Mark III detector at the storage ring SPEAR at the Stanford Linear Accelerator Center. The $D\sb{s}$ mesons are produced predominantly in the reaction $e\sp+e\sp-\to D\sbsp{s}{\pm}D\sbsp{s}{\*\mp}$, allowing measurement of the $D\sb{s}$ and $D\sbsp{s}{\*}$ masses. Measurements or upper limits of the cross section times branching fraction are presented for $D\sbsp{s}{+}\to\phi\pi\sp+$, K$\sp{\*0}$K$\sp+$, non-resonant K$\sp+$K$\sp-\pi\sp+$, $\phi\pi\sp+\pi\sp0$, $\phi\rho\sp+$, $\eta\pi\sp+$, $\omega\pi\sp+$, and $\eta\sp\prime\pi\sp+$. The relative branching fraction for $D\sbsp{s}{+}\to\eta\sp\prime\pi\sp+$ is significantly smaller than previous measurements.
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