Search for the glueball identification of theta(1640)

We examine the argument that theta(1640) is the tensor glueball. The difficulty of the identification of theta(1640) as a flavor-singlet state is shown by analyzing the decay mode of theta(1640). The search for decay events of J/psi→νtheta is urged to decide whether theta(1640) is a tensor glueball or a quarkonium. If theta(1640) is a glueball, the νtheta final state is suppressed in the decay of J/psi. On the other hand, if theta is a radially excited state of f meson, νtheta is observed copiously as well as νtheta