We present formulas for the momentum $\mathrm{}\left(z\right)\mathrm{}$ distributions of $D$ mesons produced in neutrino deep-inelastic scattering off strange partons. The expressions are derived within the variable flavor scheme of Aivazis, Collins, Olness, and Tung, which is extended from its fully inclusive formulation to one-hadron inclusive leptoproduction. The dependence of the results on the assumed strange quark mass $m_s$ is investigated and the $m_s\to 0$ limit is compared to the corresponding modified minimal subtraction results. The importance of $O\left({\alpha }_s\right)$ quark-initiated corrections is demonstrated for the $m_s=0\mathrm{}$ case.

• Received 11 February 1997

DOI:https://doi.org/10.1103/PhysRevD.56.1804