Inclusive production of K sup + mesons in 2. 1-GeV/nucleon nuclear collisions

{ital K}{sup +} meson production by 2.1-GeV/nucleon Ne, {ital d}, and {ital p} projectiles on NaF and Pb targets has been measured. The cross sections depend exponentially upon the kaon energy in the nucleon-nucleon c.m. frame, with an inverse slope {ital T}{sub 0} larger than the values obtained from comparable proton and {pi}{sup {minus}} spectra. The angular distribution in this frame is approximately isotropic. The {ital A} dependence of the kaon yield has been determined. Data are compared with theoretical predictions.