KAON PRODUCTION IN SI+AL AND SI+AU COLLISIONS AT 14.6A GEV C/

AGS experiment E859 is a follow-on to experiment E802 that uses a seco nd-level trigger based on particle identification to enhance the colle ction of rare species. We now have high statistics spectra over a broa d range in rapidity and transverse momentum for both positive and nega tive kaons, allowing a detailed comparison of these particles for the first time in AGS heavy-ion experiments. The K- are seen to have a nar rower rapidity distribution than the K+, a difference which may be due to the way in which resonances contribute to the yield of K-and K+.