Product of acceptance and efficiency of \Dzero-meson jet reconstruction as a function of \ptd. Left: acceptance $\times$ efficiency for prompt \Dzero-meson jets with $5< \ptchjet< 15$ \GeVc\ (full circles) and $15< \ptchjet< 30$ \GeVc\ (open circles) Right: prompt (circles) and non-prompt (squares) \Dzero-meson jet acceptance $\times$ efficiency for $5< \ptchjet< 30$ \GeVc.