Cross-section measurements for the reactions vp. -->. mu. /sup -/. pi. /sup +/p and vp. -->. mu. /sup -/K/sup +/p at high energies

We present results for the reactions vp ..-->.. ..mu../sup -/..pi../sup +/p and vp ..-->.. ..mu../sup -/K/sup +/p at energies above 5 GeV. The average cross section for the first reaction between 15 ad 40 GeV is (0.80 +- 0.12) x 10/sup -38/ cm/sup 2/ and for events with M/sub ..pi../+p-italic < 1.4 GeV is (0.55 +- 0.08) x 10/sup -33/ cm/sup 2/. The ratio of the cross section for the second reaction to that for the first is 0.017 +- 0.010.