Evaporation of neutral strange particles in p-bar-Ta at 4 GeV/c

The reaction p-bar+Ta..-->..V/sup 0/+X (V/sup 0/ = ..lambda.., Lambda-bar, or K/sub s//sup 0/) at 4 GeV/c has been studied by comparing with the results in p-barp interaction. Strong enhancement of ..lambda.. production was observed, while Lambda-bar production is suppressed. The Lambda-bar/..lambda.. production ratio is obtained as (2.0 +- 1.0) x 10/sup -2/. ..lambda.. reveals evaporationlike behavior with a nuclear temperature of 97 MeV. Evaporationlike behavior with a temperature of 135 MeV, but via a short-range process, was observed also in K/sub s//sup 0/ production.