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arXiv · hep-ph/9601246

Instanton Effects in the Decay of Scalar Mesons

Ch. Ritter·B. C. Metsch·C. R. Munz·H. R. Petry
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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.

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Ch. Ritter, B. C. Metsch, C. R. Munz, H. R. Petry. 1996-01-11. Instanton Effects in the Decay of Scalar Mesons. https://doi.org/10.1016/0370-2693(96)00622-3

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