Instanton Effects in the Decay of Scalar Mesons

Abstract

We show that instanton effects may play a crucial role in the decay of scalar mesons into two pseudoscalars. Particularly the branching ratios of two meson decays of the $f_0(1500)$, which is considered as a glue-ball candidate, are then compatible with an ordinary $q\bar{q}$-structure of this resonance and a small positive SU(3) mixing angle, close to a result recently calculated with the same instanton-induced force.

9 pages, uuencoded latex including two figures

References in corpus (3)

• Is $f_0(1500)$ a Scalar Glueball?
• EVIDENCE FOR A SCALAR GLUEBALL
• Scalar Mesons in a Relativistic Quark Model with Instanton-Induced Forces

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