Negative-Pion Production in Relativistic Heavy-Ion Collisions

Abstract

Negative-pion production in relativistic heavy-ion collisions has been studied in a triggered streamer-chamber experiment with projectile nuclei $^{12}\mathrm{C}$ and $^{40}\mathrm{Ar}$ in the energy range 0.4-2.1 GeV/nucleon incident on targets LiH, NaF, Ba${\mathrm{I}}_{2}$, and ${\mathrm{Pb}}_{3}$${\mathrm{O}}_{4}$. Negative-pion yields, multiplicity distributions, and angular and momentum distributions are reported.