Neutral strange particle production in K^{+} and \pi^{+} collisions with Al and Au nuclei at 250 GeV/c

Data are presented on inclusiveK s 0 and Λ production inK+ and π+ collisions with Al and Au nuclei at 250 GeV/c. Results are given on total inclusive cross sections and theA dependence, as well as on distributions in Feynman-x F , rapidityy and transverse momentum. Ratios ofK S 0 and of Λ to π+ production are presented. The data are compared with predictions of the quark-parton model FRITIOF.