Figure 1

Invariant mass (left panel) and pseudoproper decay length (right panel) distributions for \PJpsi candidates with $\Pt >1.3$ GeV/$c$ with superimposed projections of the maximum likelihood fit The latter distribution is limited to the \PJpsi candidates under the mass peak, i.e. for $2.92 < m_{\Pep\Pem} < 3.16 $ GeV/$c^2$, for display purposes only The $\chi^2$ values of these projections are also reported for both distributions