J PSI ELECTROMAGNETIC PRODUCTION AT E(+)E(-) COLLIDERS/

Within the framework of QED we investigate inclusive J/psi production at e(+)e(-) colliders. It is expected to be a further test to charmoni um production mechanisms and QED. We find that at the energies of CESR , BEPC, and KEK TRISTAN (e.g., 4.0 GeV less than or equal to root s le ss than or equal to 60 GeV), the contributions of the concerned electr omagnetic processes to J/psi inclusive production are great, even domi nant; thus, they greatly affect the observation of the color-octet J/p si, production signature at e(+)e(-) colliders. The production of psi' , being similar to that of J/psi's, is roughly estimated, and its infl uence on the observation of the color-octet J/psi production signature in e(+)e(-) collisions is also discussed. [S0556-2821(98)04805-X].