2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45405The rapidity dependence of the low-$p_t$ enhancement is shown to be a sensitive measure of the longitudinal source size for longitudinally expanding finite systems.12 pages, LaTeX, ReVTeX, 1 uuencoded .eps figure included with epsfHigh Energy Physics - PhenomenologyNuclear Theorytext