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Production of ϕMesons in Near-Threshold πN and N N Reactions

A. I. Titov·B. Kämpfer·B. L. Reznik
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Abstract

We analyze the production of $ϕ$ mesons in $πN$ and NN reactions in the near-threshold region, using throughout the conventional ``non-strange'' dynamics based on such processes which are allowed by the non-ideal $ω-ϕ$ mixing. We show that the occurrence of the direct $ϕNN$ interaction may show up in different unpolarized and polarization observables in $πN\to Nϕ$ reactions. We find a strong non-trivial difference between observables in the reactions $pp\to ppϕ$ and $pn\to pnϕ$ caused by the different role of the spin singlet and triplet states in the entrance channel. A series of predictions for the experimental study of this effect is presented.

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A. I. Titov, B. Kämpfer, B. L. Reznik. 2000-01-14. Production of ϕMesons in Near-Threshold πN and N N Reactions. https://doi.org/10.1007/s100500050427

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