Instanton Effects in the Decay of Scalar Mesons

Details Instanton Effects in the Decay of Scalar Mesons Instanton Effects in the Decay of Scalar Mesons

1996-01-11

arxiv.org/abs/hep-ph/9601246v1

Phys.Lett. B380 (1996) 431-436

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, uuencoded latex including two figures

Scientific paper

10.1016/0370-2693(96)00622-3

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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