The $m^2-m_{\mathrm{PDG}}^2$ distributions obtained using the TOF detector (left) and with the HMPID detector (right) in two different \pt\ intervals($4.4\leq\pt< 5$ \gmom\ and $5\leq\pt< 6$ \gmom) for positive tracks in the \mbox{0--10\%} centrality class. Here $m_{\mathrm{PDG}}$ is the nominal mass of deuteron asreported in  Solid lines represent the total fit (signal plus background), dotted lines correspond to background and dashed lines to deuterons signal.