A study of Zweig's rule using phi mesons in a broad band neutral beam

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.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year dc:date

2011

Author dc:creator

• Goodman, Maury Charles

Contributors dc:contributor

• Wattenberg, A.

• Zwig's rule
• phi mesons
• broad band neutral beam
• high energy photon beam

Statement dc:rights

• 1979 Maury Charles Goodman

Language dc:language

en

Identifier

397105

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/25558