Differential Production Cross Sections of Low-Momentum Particles from 12.3-BeV/<i>c</i>Protons on Beryllium and Copper

Abstract

Measurements of the differential production cross sections of pions, kaons, protons, and antiprotons from 12.3-BeV/c protons incident upon copper and beryllium targets were made at the Zero-Gradient Synchrotron at Argonne National Laboratory. These measurements were taken at production angles between 0 and 11.2 deg and covered the momentum range 500-1030 MeV/c. The particles were detected by a time-of-flight technique, supplemented by \ifmmode \check{C}\else \v{C}\fi{}erenkov counters for kaons and antiprotons.