Comment on "On the Origin of the OZI Rule in QCD", by N. Isgur and H. B. Thacker

Details Comment on "On the Origin of the OZI Rule in QCD", by N. Isgur and H. B. Thacker Comment on "On the Origin of the OZI Rule in QCD", by N. Isgur and H. B. Thacker

2000-05-30

arxiv.org/abs/hep-lat/0005025v1

Physics

High Energy Physics

High Energy Physics - Lattice

5 pages, 3 figures

Scientific paper

We comment on the recent paper (hep-lat/0005006) by Isgur and Thacker on the origin of the OZI rule in QCD. We show that instantons explain the sign and magnitude of the observed OZI-violating amplitude in all mesonic channels, not just in the $\eta'$ channel. We comment on the role of instantons in hadronic spectroscopy and the relation between instantons and the large $N_c$ limit of QCD.

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