Non-coherent contributions in charge-exchange reactions and $\eta$--${\eta }^{\prime }$ mixing

M. L. Nekrasov

We analyse $K^{-}p\to (\eta ,{\eta }^{\prime },{\pi }^0)\Lambda$ on the basis of the fit of data in a wide region of energies, and ${\pi }^{-}p\to (\eta ,{\eta }^{\prime })n$ at the energies of GAMS-4$\pi$. We show that disagreement…