Figure 2

Invariant mass distributions for $\Dzero$ (upper panels), $\Dplus$ (central panels), and $\Dstar$ (lower panels) candidates and theircharge conjugates in selected $\pt$ intervals for $3.2\times 10^6$ 0-20% central Pb-Pb collisions The curves show the fit functions described in the text. The values of mean ($\mu$) and width ($\sigma$) of the signal peak are reported in the plots together with the raw signal yield. The uncertainties on the signal yields reported in the figures are statistical only.