Tests of Factorization from Single- and Double-Pion Production in 100-GeV/cp¯pandppCollisions

Abstract

Single- and double-pion inclusive spectra are presented for 100-GeV/c $\overline{p}p$ interactions and compared with related $\mathrm{pp}$ data. Double-fragmentation distributions are shown to be understood within a Mueller-Regge framework as a product of single-fragmentation distributions. Consideration of $\mathrm{pp}$ and $\overline{p}p\ensuremath{-}pp$ distributions shows factorization to hold in Pomeron and in Reggeon exchanges independently.