SEARCH FOR PSI(2S) PRODUCTION IN E(-) ANNIHILATIONS AT 4.03 GEV()E()

A search is performed for the production of the psi(2S) in e(+)e(-) an nihilation at a center-of-mass energy of 4.03 GeV using the BES detect or operated at the Beijing Electron Positron Collider (BEPC). The kine matic features of the reconstructed psi(2S) signal are consistent with its being produced only in association with an energetic photon resul ting from initial state radiation (ISR). Limits are placed on psi(2S) production from the decay of unknown charmonia or metastable hybrids t hat might be produced in e(+)e(-) annihilations at 4.03 GeV. Under the assumption that the observed cross section for psi(2S) production is due entirely to ISR, the partial width Gamma(ee) of the psi(2S) is mea sured to be 2.07+/-0.32 keV. [S0556-2821(98)01309-5].