Abstract
The OZI rule violation and the mixing with glueballs of the flavour-singlet mesons are studied in SU(2) lattice gauge theory. For the scalar the OZI rule violating component rapidly becomes comparable to the non-violating piece towards the light quark mass, while for the vector the former is strongly suppressed. A rapid increase of the correlation function between the scalar meson and glueball are also observed for the light quark mass.
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