ηand η’ production inp¯pannihilation at rest

From measurement of η→2γ emitted in p¯p annihilation at rest, we have derived the yield, or its upper limit, of annihilation into two mesons p¯p→ηM for M=φ, η’, ω, ${\rho }^0$, η, and ${\pi }^0$/γ (sum of ${\pi }^0$ and γ), the branching ratio of the inclusive η production p¯p→ηX for different charge multiplicities of X, and the inclusive η/${\pi }^0$ ratio. An upper limit for the inclusive η’ production p¯p→η’X has also been obtained.