Invariant-mass distributions $\Delta M$ of \Dstar-meson candidates obtained from prompt (left) and non-prompt (middle) enhanced sample in $3\pt5 \GeVc$ and for the prompt enhanced sample in $30\pt50 \GeVc$ (right). Distributions are shown for $\cost$ integrated (top), $-0.8\cost-0.6$ (middle) and $0.6\cost0.8$ (bottom) at midrapidity ($|y|0.8$) in pp collisions at $\sqrt{s}=13.6$ Te\kern-.1emV\xspace.