“…For instance, the π − rapidity distribution at 200 AGeV was clearly not uniform, as assumed in the asymptotic Bjorken picture, but would be better described by a Gaussian with width Y c ≈ 1.4 [32]. On the other hand, a large fraction of the pions could arise from the decay of long lived resonances, such as ω, K * , η, etc, as was suggested by Grassberger [13].…”