Inclusive Strange-Particle Production byνpInteractions in the 10—200-GeV Region

Data are presented on charged-current inclusive strange-particle production in 10-200-GeV/c νp interactions. Final states with V⁰ decay topologies are reported: Kₛ⁰, Λ⁰(Σ⁰), Λ⁰(Σ⁰). Neutrino energy, charged multiplicity, Q², W, x, and y distributions are shown. The corrected relative V⁰ production rate is 0.16±{}0.03 per event. The first example of neutrino-induced antibaryon (Λ) production is observed. The 90%-confidence upper limit on ΔS=-ΔQ inclusive Λ production is 0.036 of all charged-current νp interactions above 10 GeV/c.