Inclusive production of heavy quarkonia in e⁺e^- annihilation

We present calculations of inclusive production of heavy quarkonia via the subprocess {Mathematical expression}. In the particular case M=J/ψ (Q=c) this subprocess competes significantly with other mechanisms which produce final state gluons. Thus inclusive J/ψ production cannot be used to study gluonic jets, as has been suggested. We also present results for the total cross-section of inclusive γ and η_c production via the same mechanism.