Why the OZI rule is so strongly violated in J/Psi decays?
High Energy Physics - Phenomenology
2008-11-26 v3 High Energy Physics - Experiment
High Energy Physics - Lattice
Nuclear Experiment
Nuclear Theory
Abstract
The new meson recently observed by BES collaboration in -decay, is seen only in the OZI-forbidden channel. It is shown that chiral symmetry restoration in excited hadrons implies a new selection rule of dynamical origin that forbids some of the OZI-favoured mechanisms of decays. Hence decays into channels that are suppressed by OZI can become dominant.
Keywords
Cite
@article{arxiv.hep-ph/0507206,
title = {Why the OZI rule is so strongly violated in J/Psi decays?},
author = {L. Ya. Glozman},
journal= {arXiv preprint arXiv:hep-ph/0507206},
year = {2008}
}
Comments
5 pages, 5 figures. The paper has been expanded. A new figure as well as implications of chiral symmetry for the search of missing a_0 mesons in charmonium decays have been added. To appear in Phys. Rev. D