ANALYSIS OF pp $Yields$ pp$pi$$sup +$$pi$$sup -$ AT 16 GeV/c BY THE MULTI- REGGE-POLE EXCHANGE MODEL.

Experimental distributions for the reaction $\mathrm{pp}\ensuremath{\rightarrow}\mathrm{pp}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ at 16 GeV/c are consistent with predictions of a Regge-pole model incorporating exchange of a Reggeized pion. The Treiman-Yang angle distribution affords a distinctive test in favor of pion Reggeization for this reaction.