A comparison of the invariant mass distributions in three $\pt$ intervals for $\Dzero$ candidates obtained without PID, with n$_{\sigma}$ PID, and with Bayesian PID using the maximum probability condition. Due to the low statistical significance, it was not possible to extract a stable signal without PID for $1< \pt< 2$ GeV/$c$, therefore this fit and its results are not shown. | |