Results on antiproton absorption at rest in gaseous nitrogen and deuterium are presented from an analysis of approximately ${10}^6$ events each taken with a magnetic spectrometer. Inclusive features such as pion and proton multiplicities and spectra are presented. Data relating to absorption modes requiring more than one nucleon, such as the Λ yield, the Λ spectrum, and the exclusive deuterium channels p¯d→${\pi }^{\mathrm{-}}$p, Λ$K^{+}$${\pi }^{\mathrm{-}}$ are discussed. The fully reconstructable channels p¯d→${\mathrm{\pi }}^{+}$${\mathrm{\pi }}^{\mathrm{-}}$${\mathrm{\pi }}^{\mathrm{-}}$p,${\mathrm{\pi }}^{+}$${\mathrm{\pi }}^{+}$ ${\mathrm{\pi }}^{\mathrm{-}}$${\mathrm{\pi }}^{\mathrm{-}}$${\mathrm{\pi }}^{\mathrm{-}}$p also show a high-energy proton tail unaccounted for by single nucleon rescattering mechanisms.

• Received 22 May 1989

DOI:https://doi.org/10.1103/PhysRevC.40.2717