Strange-particle production in high-energy nu-bar and ν charged-current interactions on protons

We have studied the semi-inclusive reactions nu-barp→μ+V0X and νp→μ-V0X, and measured the fractional rate for producing one or more neutral strange particles in these reactions to be 0.16 +- 0.03 and 0.15 +- 0.04, respectively. We have observed K-(892) and Σ-(1385) production in nu-barp scattering at a few percent of the inclusive rate. No evidence for D0 production was seen in the K0/sub S/π+π- final state. The distributions in the standard deep-inelastic kinematic variables are presented for events with strange particles and compared to those for the other charged-current data. The fragmentation properties of events containing a K0/sub S/ are in agreement with results from electroproduction experiments, and we have measured ∫/sup 1.0//sub 0.3/(1/N/sub T/)(dN/dz)dz = 0.029 +- 0.005, which is smaller than the prediction of the Field and Feynman fragmentation model