Evaluation of the Triple-Pomeranchukon-VertexηPPP(t)from Experiment as a Function oft

We show that the squared coupling constant ${\eta }_{\mathrm{PPP}}\mathrm{}\left(t\right)\mathrm{}$ connecting three Pomeranchukons, which has acquired considerable interest recently, can be evaluated directly from experiment. We use data at 24 GeV/c for the reaction $p+p\to p^{+}$ background for this purpose. We find that ${\eta }_{\mathrm{PPP}}\mathrm{}\left(0\right)=0.005\mathrm{}$ is consistent with theoretical estimates. Further, ${\eta }_{\mathrm{PPP}}\mathrm{}\left(t\right)\mathrm{}$ falls very rapidly at $t$ goes from 0 to -1.5 ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$.