A comprehensive study of the radiative decays of J/ψ and ψ(2S) to pseudoscalar meson pairs, and search for glueballs

Using 53 pb(-1) of e(+)e(-) annihilation data taken at the psi(2S) resonance, a comprehensive study has been made of the radiative decays of samples of 5.1 million J/psi and 24.5 million psi(25) into pairs of pseudoscalar mesons, pi(+)pi(-), pi(0)pi(0), K+K-, (KSKS0)-K-0, and eta eta. Product branching fractions for the radiative decays of J/psi and psi(2S) to scalar and tensor resonances have been determined, and are discussed in relation to predicted glueballs. For psi(25) radiative decays, the search for glueballs has been extended to masses between 2.5 GeV and 3.3 GeV.