A study of Zweig's rule using phi mesons in a broad band neutral beam
Goodman, Maury Charles
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https://hdl.handle.net/2142/25558
Description
Title
A study of Zweig's rule using phi mesons in a broad band neutral beam
Author(s)
Goodman, Maury Charles
Issue Date
1979
Doctoral Committee Chair(s)
Wattenberg, A.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Zwig's rule
phi mesons
broad band neutral beam
high energy photon beam
Language
en
Abstract
A study of Zweig's rule using phi mesons in a high
energy photon beam has been performed. Measurement of the ratio sigma (gamma A -> phi pi pi A) / sigma (gamma A -> omega pi pi A) = 0.10 ± 0.02 is taken as evidence that there is not as strong suppression as could be expected. Other ratios show strange particle production down from non-strange particle production by a factor of twelve. Decays involving phi mesons are studied, and the only candidate seen is a four sigma effect in the mode two phis with a mass 2.15 Gev. F meson, charm pseudo-scalar meson and exotic vector mesons which might decay into phis are not seen. The phi prime is not seen with an upper limit
sigma (gamma A -> 'A) B (phi' -> K+K-pi+pi-) < 6 nb per nucleon.
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