The 'split' iota

Within the context of a five channel mixing model the possibility is considered that the E(1420) originally seen in Panti P annihilation at rest and originally believed to be a Jsup(PC)=1++ state is actually a pseudoscalar state distinct from the iota(1460) seen in radiative psi decay. The quark and glue content that this hypothesis implies and the consequences for branching ratios of the known pseudoscalars are discussed. The five channel mixing model includes the ground state pseudoscalars, their first radial excitations, and a glueball. Mixing terms include an SU(3) symmetric glueball-quark state coupling as well as the important two body intermediate state unitarity corrections. While a number of mathematically consistent solutions to the model are found, none are physically acceptable. It is concluded that the more likely scenario is that the E(1420) and the iota(1460) are the same state, and the fifth partner to the scheme lies in a higher mass range, above 1.7 Gev. (orig.)