Evidence forι(1460)Production inπ−pInteractions at 21.4 GeV/c

The $K_S^0{K}_S^0{\pi }^0$ system has been studied in the exclusive reaction ${\pi }^{-}p\to K_S^0{K}_S^0{\pi }^{0}n$ at 21.4 GeV/c. Evidence for the production of the $f_1\mathrm{}\left(1285\right)\mathrm{}$ and the $\eta \mathrm{}\left(1460\right)\mathrm{}$ is presented. The $\eta \mathrm{}\left(1460\right)\mathrm{}$ is produced away from minimum momentum transfer in the presence of nonresonant $K^{*}K$ ($S$-wave) production and phase-space background. The observed mass, width, and decay properties of the $\eta \mathrm{}\left(1460\right)\mathrm{}$ are consistent with those attributed to the $\iota \mathrm{}\left(1460\right)\mathrm{}$ observed in radiative $\frac{J}{\psi }$ decay.