PRODUCTION CROSS SECTION FOR THE REACTIONS $pi$$sup -$ + p$Yields$$lambda$ + THETA$sup 0$ AT 0.91, 1.2 AND 1.3 BEV

Results are reported from an experiment with propane bubble chambers exposed to the 0.91, 1.2, and 1.3 Bev Brookhaven negative pi /sup -/ meson beam. Cross sections and angular distributions are given for the reactions pi /sup +/ + p yields LAMBDA /sup 0/ + THETA /sup 0/ (291 events) and pi /sup -/ + p yields SIGMA /sup 0/ + THETA /sup 0/ (40events). These events represented about one-half of all neutral strange panticles observed in the chamber. (W.D.M.)