Okubo-Zweig-Iizuka Rule Violation and Possible Explanations

Details Okubo-Zweig-Iizuka Rule Violation and Possible Explanations Okubo-Zweig-Iizuka Rule Violation and Possible Explanations

1996-11-05

arxiv.org/abs/hep-ph/9611238v1

Phys.Atom.Nucl.59:1427,1996; Yad.Fiz.59N8:1485-1492,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages incluing 3 postscript figures

Scientific paper

Violations of the Okubo-Zweig-Iizuka (OZI) rule in $s\bar s <-> n\bar n = 1/2 (u\bar u + d\bar d)$ mixing and $\phi$ production from nucleon-antinucleon annihilation are reviewed. Possible explanations are examined. We conclude that the two-step hadronic loops can explain these OZI violations naturally with proper consideration of cancellations between loops. No conclusive evidence exists for glueball states, $s\bar sn\bar n$ four quark states, instanton effects, and strange quarks in nucleon.

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