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

Abstract

Data are presented on charged-current inclusive strange-particle production in 10-200-GeV/c $\nu p$ interactions. Final states with $V^0$ decay topologies are reported: ${K_s}^0$, ${\Lambda }^0\left({\Sigma }^0\right)$, ${\overline{\Lambda }}^0\left({\overline{\Sigma }}^0\right)$. Neutrino energy, charged multiplicity, $Q^2$, $W$, $x$, and $y$ distributions are shown. The corrected relative $V^0$ production rate is 0.16±0.03 per event. The first example of neutrino-induced antibaryon ($\overline{\Lambda }$) production is observed. The 90%-confidence upper limit on $\Delta S=-\Delta Q$ inclusive $\Lambda$ production is 0.036 of all charged-current $\nu p$ interactions above 10 GeV/c.