Cross-Section Measurements for the Reactions $\nu p\to {\mu }^{-}{\pi }^{+}p$ and $\nu p\to {\mu }^{-}{K}^{+}p$ at High Energies

We present results for the reactions $\nu p\to {\mu }^{-}{\pi }^{+}p$ and $\nu p\to {\mu }^{-}{K}^{+}p$ at energies above 5 GeV. The average cross section for the first reaction between 15 and 40 GeV is (0.80±0.12) × ${10}^{-38\mathrm{}}$ ${\mathrm{cm}}^2$ and for events with $M_{{\pi }^{+}p}<1.4\mathrm{}$ GeV is (0.55±0.08) × ${10}^{-38\mathrm{}}$ ${\mathrm{cm}}^2$. The ratio of the cross section for the second reaction to that for the first is 0.017±0.010.