Instanton Effects in the Decay of Scalar Mesons

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

doi:10.1016/0370-2693(96)00622-3

Instanton Effects in the Decay of Scalar Mesons

High Energy Physics - Phenomenology 2009-10-28 v1

Authors: 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.

Keywords

instanton effects scalar meson decay glueball f0(1500) SU(3) mixing angle q qbar structure

Cite

@article{arxiv.hep-ph/9601246,
  title  = {Instanton Effects in the Decay of Scalar Mesons},
  author = {Ch. Ritter and B. C. Metsch and C. R. Munz and H. R. Petry},
  journal= {arXiv preprint arXiv:hep-ph/9601246},
  year   = {2009}
}

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9 pages, uuencoded latex including two figures

Instanton Effects in the Decay of Scalar Mesons

Abstract

Keywords

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