Forward Cross Sections for Production of ${\mathit{D}}^{+}$, ${\mathit{D}}^0$, ${\mathit{D}}_{\mathit{s}}$, ${\mathit{D}}^{*+}$, and ${\Lambda }_{\mathit{c}}$ in 250 GeV ${\pi }^{\pm }$, ${\mathit{K}}^{\pm }$, and $\mathit{p}$ Interactions with Nuclei

We measure forward cross sections for production of $D^{+}$, $D^0$, $D_s$, $D^{*+}$, and ${\Lambda }_c$ in collisions of ${\pi }^{\pm }$, $K^{\pm }$, and $p$ on a nuclear target. Production induced by different beam particles is found to be the same within statistics. Strange and baryonic final states are seen to contribute appreciably to the total charm cross section, which our measurements indicate is larger than but consistent with QCD predictions. The energy dependence mapped out by these and previous measurements is consistent with theory. Leading-particle asymmetry measurements for $K$ and $p$-induced charm production are also presented.